标签：#html

Getting Comfortable with HTML Attributes When I first started learning HTML, attributes felt like tiny details hiding inside the tags. I understood the basic structure of a webpage, but I didn’t fully understand why some elements had extra words like href, src, or alt. Over time, I realized attributes are what make HTML elements useful. They add meaning, behavior, and context. Without attributes, a webpage would still have structure, but it would feel limited and incomplete. What HTML attributes really do An HTML attribute gives extra information about an HTML element. It is written inside the opening tag and usually has a name and a value. In simple words, the tag creates the element, and the attribute explains something about that element. For example: Here, href tells the browser where the link should go. Why attributes matter Attributes may look small, but they make a big difference in how a webpage works. They can: Connect one page to another using links. Display images, videos, and other media. Improve accessibility for users and screen readers. Help CSS and JavaScript identify elements. Control forms, buttons, and user input. Without attributes, HTML would only show content. Attributes help that content become interactive and meaningful. Some attributes I use all the time href for links The href attribute is used with anchor tags. It tells the browser the destination of the link. src for images The src attribute gives the path to an image, video, or audio file. alt for accessibility The alt attribute describes an image. It is helpful when the image does not load and also important for screen readers. id and class for styling id gives a unique name to an element, while class is used when multiple elements share the same styling or behavior. placeholder and required in forms These attributes make forms easier for users to understand and complete. A few habits that helped me Use lowercase attribute names. It keeps the code cleaner and easier to read. Put attribu

Videos are one of the heaviest assets you can add to a web page. Loading videos too early can significantly impact your application's performance. The good news is that modern browsers are starting to support lazy loading for video elements , allowing you to defer loading until users are likely to watch them. However, there's one important thing to know: 👉 This feature is not yet part of the Baseline web platform , so browser support is still limited. At the time of writing, lazy loading for <video> elements is supported in Chromium-based browsers such as Google Chrome , Microsoft Edge , and Opera , while browsers like Firefox and Safari do not yet support it natively. In this article, we'll explore: What lazy loading videos is Why it's important for web performance How to implement it Browser support considerations Best practices for optimizing video loading Let's dive in. 🤔 What Is Lazy Loading for Videos? Lazy loading means delaying the loading of a resource until it's actually needed. Instead of downloading every video immediately during page load, the browser waits until the video is close to entering the viewport. This helps reduce: initial network requests bandwidth usage page load time memory consumption Especially on pages with multiple videos, the difference can be significant. 🟢 What Problem Does It Solve? Imagine an e-commerce page with several product videos. Without lazy loading: every video starts downloading immediately bandwidth is consumed even for videos users never watch page rendering may become slower This negatively impacts; Largest Contentful Paint (LCP), Time to Interactive (TTI), and overall user experience. Most visitors won't watch every video on the page. So why load them all? Lazy loading ensures videos are fetched only when they're actually needed. 🟢 How to Lazy Load a Video The easiest approach is using the loading="lazy" attribute. Example: <video controls loading= "lazy" poster= "/preview.jpg" > <source src= "/video.mp4" type= "vide

Many developers still rely on heavy, third-party JavaScript frameworks or external UI libraries just to create simple popups and modal windows. This introduces bloated bundle sizes, slows down page speed, and often ruins accessibility (a11y) for keyboard users and screen readers. Fortunately, you can build an accessible, highly interactive modal window completely natively using the modern HTML5 <dialog> element. The Code Setup Here is how simple it is to build a native modal with semantic HTML, minimal JavaScript, and a touch of modern CSS styling. 1. The Markup (index.html) <main> <h1> Native HTML5 Dialog Element </h1> <p> Click the button below to open a completely native, accessible popup modal. </p> <button id= "openModalBtn" > Open Modal Window </button> </main> <dialog id= "myModal" > <h2> Native Modal Title </h2> <p> This modal is rendered natively by the browser. Focus is trapped automatically! </p> <button id= "closeModalBtn" > Close Modal </button> </dialog> ### 2. The Logic (script.js) Instead of manually managing visibility states or toggle classes, the browser gives us built-in `.showModal()` and `.close()` methods: javascript const modal = document.getElementById('myModal'); const openBtn = document.getElementById('openModalBtn'); const closeBtn = document.getElementById('closeModalBtn'); openBtn.addEventListener('click', () => { modal.showModal(); }); closeBtn.addEventListener('click', () => { modal.close(); }); dialog ::backdrop { background-color : rgba ( 0 , 0 , 0 , 0.6 ); backdrop-filter : blur ( 4px ); } dialog { border : none ; border-radius : 8px ; padding : 2rem ; box-shadow : 0 4px 12px rgba ( 0 , 0 , 0 , 0.15 ); } Interactive Demos & Source Code Working Live Code Demo: ( https://codepen.io/editor/CoderDecoding/pen/019f5548-f0cb-75f8-b915-b9fdb33e92d1 ) Public Code Repository: ( https://github.com/CoderDecoding/native-dialog-demo )

While building a Computer-Based Testing (CBT) platform, I ran into an unexpected problem. Creating mathematics and chemistry questions wasn't nearly as straightforward as I expected. Although there are many excellent editors and open-source libraries available, I couldn't find one that brought everything together in a way that was simple, lightweight, and designed specifically for CBT systems. Instead of building everything from scratch, I took a different approach. I combined several powerful open-source technologies into a single editor that focuses on one job—making it easy to create mathematics and chemistry content for online examinations. The result is CBT Editor, a free and open-source equation editor built for developers, schools, and educational platforms. It supports common mathematical expressions, chemistry notation, scientific symbols, fractions, superscripts, subscripts, and more, while remaining easy to integrate into existing projects. This project isn't meant to replace the fantastic libraries that already exist. In fact, it depends on them. The goal is to provide a clean, unified experience so developers don't have to spend hours combining multiple tools just to support technical examination questions. If you're building a CBT platform, an online examination system, or any educational application that requires mathematics and chemistry editing, I'd love for you to give CBT Editor a try and share your feedback. 🔗 Live Demo: https://holygist.github.io/cbt-editor/ Open-source software grows through collaboration. If you find the project useful, feel free to contribute, report issues, suggest improvements, or simply share it with other developers.

MarkDown - что это? [[Markdown]] — это язык разметки, с упрощенным до человекочитаемости синтаксисом. Markdown — создан Джоном Грубером ( John Gruber ) в 2004 году. Markdown — это фактически "микро" язык для трансляции "текста markdown"в подмножество языка XHTML. Markdown - итоговая презентация текста всегда документ HTML , и только потом если нужно следующим шагом PDF, др. стандарты документации. Markdown принципиально не может задействовать весь потенциал XHTML, результатом его работы всегда является ограниченный набор элементов. Markdown — это транслятор который при анализе интегрированного в "текст" markdown HTML/XHTML кода обязан по стандарту просто его транслировать в итоговый образ документа. Markdown — это, если цитировать автора > «Markdown — это инструмент преобразования текста в HTML для веб-писателей. Markdown позволяет писать в легко читаемом и удобном для написания текстовом формате, а затем преобразовывать его в структурно корректный HTML. ║ John Gruber » Примечание Термин транслятор , не обходимо понимать как сущность алгоритм Я не нашел программу реализующая концепт MarkDown по принципам John Gruber. Ни одна программа не умеет делать из Markdown валидный по John Gruber HTML. Все проверенные мною программы Obsidian, MarkText, Typora, на выходе из 10 строк генерируют портянку HTML в несколько тысяч строк!!! Причина Obsidian, Typora и MarkText используют Markdown не для веб-писателей и блогеров, а как формат хранения баз знаний (Knowledge Management)**. John Gruber - Wikipedia

GitHub热门项目 | 💡 Download the complete source code of any website (including all assets). [ Javascripts, Stylesheets, Images ] using Node.js | Stars: 3,643 | 173 stars today | 语言: HTML

🎮 I Built a Free Browser Gaming Platform – FizGame Over the past few weeks, I've been working on a side project called FizGame, a free browser gaming platform where anyone can instantly play HTML5 games without downloads or installations. 🌐 Website: FizGame Why I Built It I wanted to create a simple platform where players can: 🎮 Play instantly in their browser 🚫 No downloads or installations 📱 Play on both desktop and mobile ⚡ Fast loading experience Current Features Hundreds of HTML5 games Mobile-friendly design Instant game loading Categories like Puzzle, Action, Arcade, Racing, and Casual Search and game discovery Responsive UI Tech Stack PHP Symfony MySQL HTML5 Games JavaScript CSS Nginx Current Focus I'm currently working on: Better SEO Faster page speed AI-generated game descriptions Improved game recommendations Daily game publishing Social media automation Biggest Challenge One of the hardest parts isn't building the website—it's helping people discover it. I'm experimenting with: YouTube Shorts Instagram Reels Facebook Reels Pinterest Organic SEO If you've built a gaming website before, I'd love to hear what worked best for you. Feedback Welcome I'd appreciate any feedback on: UI/UX Performance Navigation SEO Features you'd like to see 🎮 Check it out: FizGame Thanks for reading! 🚀

Sand bottle - WebGPU Remember those bottles filled with colored sand that you can find in many souvenir stores? Liam Egan created a digital version using JavaScript WebGPU API. Click to drop sand, use the arrows to tilt and shake the bottles, and relax while enjoying this sandy demo. Button State Builder Margarita shared this button builder that allows to customize a control with icons, text, color, shape... even all the behavior in the different states of the button. Then you can easily get the HTML, CSS, and JS code to put it on any website. Pretty cool. WebGL Switch Button In this demo, the whole page turns into a giant three-dimensional toggle switch that can be activated clicking anywhere on the viewport. Explore the component: mouse over to make the component tilt or scroll to zoom in and out. A nice job by Toc. Animated radial gradient mask over text This demo is exactly what the title says: a radial gradient applied as a mask to some text. Cassidy aligned it perfectly with the hole in the O from "Hello" that makes this effect chef's kiss . You will need to uncomment the animation property in CSS to see the demo in action. 221. ycw always creates impressive and original content. And this demo delivers. It's not only the effect in itself, but the use of light and shadows, and the perfecto choice of color that adds a timeless atmosphere. Beautiful. vRLbdoSAIsoSQvisac Mustafa Enes created different versions of this idea over the past month, all of them are great, but I picked this one as it is more interactive. Click on the screen to regenerate the pattern and move the mouse around to animate the colors. I don't know why, but there's a feeling of peace and joy while doing it. beach sunset I saw several demos by Vivi Tseng that caught my attention this month. Really enjoyed the general minimalistic style they all had and finally picked this animated one because it feels simple and pure, almost like a drawing a child would do during a vacation. I really enjoyed it

Base64 image data URIs are one of those web techniques that look like a magic shortcut the first time you use them. Instead of referencing an external file: <img src= "/logo.png" alt= "Logo" > you can put the image bytes directly in the document as text: <img src= "data:image/png;base64,iVBORw0KGgoAAAANSUhEUg..." alt= "Logo" > That can be useful. It can also make a page slower, harder to cache, and more annoying to maintain. Here is the practical rule: inline images as Base64 when self-containment matters more than caching. Keep normal image files when the browser should be able to cache, resize, lazy-load, or optimize them independently. What a Base64 image actually is An image file is binary data. Base64 rewrites that binary data as plain text using a limited character set. To make the browser treat the text as an image, you wrap it in a data URI: data:image/png;base64,iVBORw0KGgoAAAANSUhEUg... The first part tells the browser the MIME type. The second part tells it the data is Base64 encoded. The long tail is the image itself. Base64 is not compression. It is not encryption. It is just a text representation of the same bytes. When inlining an image is worth it 1. Tiny icons and UI assets For very small images, removing an extra HTTP request can be worth the extra bytes. This is especially true for small icons, logos, placeholders, simple UI sprites, or tiny transparent PNGs. Modern HTTP/2 and HTTP/3 make extra requests cheaper than they used to be, so this is not an automatic win. But for a one-off tiny asset inside a small page or widget, a data URI can still be a clean choice. 2. Single-file deliverables Sometimes the point is not raw page speed. Sometimes you need one file that carries everything with it: an HTML report an email template a CodePen or demo snippet a CMS block where you cannot upload assets a test fixture that should not depend on external hosting In those cases, Base64 is useful because the image travels with the HTML, CSS, JSON, or JavaScript.

When looking for a Property Management System (PMS) dashboard for a hotel project, I noticed most existing solutions look like they were built in 1998. I decided to code a modern, premium dashboard from scratch using pure HTML and vanilla CSS. I focused on two main design trends: Dark Mode and Glassmorphism. Here is a breakdown of how I approached the design, along with some CSS snippets you can use in your own projects. The Dark Mode Color Palette Instead of using pure black (#000000), I used a deep slate blue for the background. This reduces eye strain for hotel staff working night shifts and feels much more premium. `css :root { --bg-dark: #0f172a; /* Deep slate / --surface-dark: #1e293b; / Slightly lighter surface / --accent-gold: #facc15; / Premium gold for CTAs */ --text-main: #f8fafc; } body { background-color: var(--bg-dark); color: var(--text-main); }` The Glassmorphism Effect For the statistics cards (like Revenue and Occupancy Rate), I used a subtle glass effect to make them pop off the dark background without looking flat. `css .stat-card { background: rgba(30, 41, 59, 0.7); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 16px; padding: 24px; transition: transform 0.3s ease; } .stat-card:hover { transform: translateY(-5px); }` The Result By combining these modern design tokens with a clean CSS Grid layout, the dashboard feels incredibly sleek. It tracks live bookings, room statuses, and RevPAR seamlessly. Want the full code? If you are a developer, agency, or freelancer building a SaaS or a booking system, you don't have to start from scratch. I've packaged the complete, fully responsive HTML/CSS template. You can see the design and grab the source code here to save yourself 20 hours of coding: 👉 Download the Lumina PMS Template Happy coding! Let me know if you have any questions about the CSS architecture in the comments.

GitHub热门项目 | A comprehensive dataset of 433 fitness exercises. Each entry includes name, category, target muscle group, equipment, instructions, thumbnail image, and animation video. | Stars: 6,139 | 1,413 stars today | 语言: HTML

Semantic HTML and Accessibility: Building Better Websites Introduction Semantic HTML is the practice of using HTML elements that clearly describe the purpose of the content on a webpage. Instead of using many <div> elements, semantic tags such as <header> , <nav> , <main> , <section> , <article> , and <footer> make the page easier to understand. Semantic HTML is important because it improves accessibility, helps search engines understand web pages, and makes code easier to read and maintain. Before: Non-Semantic HTML <div class= "header" > <h1> My Portfolio </h1> </div> <div class= "navigation" > <a href= "index.html" > Home </a> <a href= "about.html" > About </a> </div> <div class= "content" > <p> Welcome to my portfolio website. </p> </div> After: Semantic HTML <header> <h1> My Portfolio </h1> </header> <nav> <a href= "index.html" > Home </a> <a href= "about.html" > About </a> </nav> <main> <section> <p> Welcome to my portfolio website. </p> </section> </main> Accessibility Issues I Found 1. Images Missing Alternative Text Before: <img src= "images/profile.jpg" > After: <img src= "images/profile.jpg" alt= "Profile picture of Grace Loko" > Adding alternative text allows screen readers to describe images to users with visual impairments. 2. Navigation Was Not Semantic Before: <div> <a href= "index.html" > Home </a> <a href= "about.html" > About </a> </div> After: <nav> <a href= "index.html" > Home </a> <a href= "about.html" > About </a> </nav> Using the <nav> element helps assistive technologies identify the website navigation. 3. Form Inputs Had No Labels Before: <input type= "text" placeholder= "Your Name" > After: <label for= "name" > Name </label> <input type= "text" id= "name" name= "name" > Labels improve accessibility by helping screen readers identify each form field. Conclusion This accessibility audit helped me understand the importance of semantic HTML and accessible web design. By replacing non-semantic elements with semantic tags, adding image alt text,

Why Semantic HTML is a Superpower for Your Website As I’ve been building my personal portfolio during the IYF Season 11 program, I realized that writing code is about more than just making things look "right"—it’s about making them accessible for everyone. The secret is Semantic HTML. What is Semantic HTML? Semantic HTML uses tags that provide meaning to the web page rather than just layout instructions. Tags like , , , , and tell the browser and screen readers exactly what content they are interacting with. If you use for everything, you are handing a screen reader a blank map. Semantic tags act like a GPS, allowing users with visual impairments to navigate your site efficiently. Before vs. After The difference is clear when comparing structure: Before (Non-Semantic): HTML My Portfolio Home | About | Contact Welcome to my site... After (Semantic): HTML My Portfolio Home About Contact Welcome to my site... Fixing Accessibility Issues During my accessibility audit (Task 2.3), I identified three key areas to improve: Missing alt Attributes: I had images without descriptions. I fixed this by adding context, such as alt="Portrait of Gladwell Muthoni, web development student", ensuring screen readers can describe images to visually impaired users. Lack of Semantic Structure: My initial gallery relied on generic containers. Switching to and tags organized my project list logically, helping assistive technology categorize the content. Heading Hierarchy: I was using tags for visual styling rather than logical structure. I corrected this to follow a strict to hierarchy, which helps screen readers outline the page properly. My portfolios URL https://github.com/gladwellmuthoni/iyf-s11-week-01-gladwellmuthoni.git

— โคลงสี่สุภาพ ว่าด้วยสามภาษาแห่งการสร้างเว็บ — HTML — โครงสร้าง <html> เปิดทางฟ้า ประกาศ <head> ซ่อนนัยน์นาถ นามนี้ <body> ร่างกายปราศ ซึ่งชีวิต ทุกแท็กเปิดปิดที่ หล่อหล่อมความจริง CSS — ความงาม สีสันลอยลิบฟ้า แต่งแต้ม ตัวอักษรเรียงแถม ถ้วนถี่ ขอบเขตเว้นระยะแย้ม เผยโฉม ทุกพิกเซลที่ปรี่ ปรุงแต่งให้งาม JavaScript — ชีวิต เมื่อคลิกนิ้วหนึ่งครั้ง โลดแล่น ฟังก์ชันทำงานแย้ม ยามใช้ if else ตรรกะแจ่ม จักรกล ทุกบรรทัดที่ให้ ชีวิตแก่หน้าเว็บ สามภาษา — หนึ่งเดียว html คือร่างให้ โครงครัน css แต่งแต้มฝัน สวยหรู javascript พลิกผัน ให้เคลื่อนไหว สามภาษาคู่ฟู ฟื้นฟูโลกา — Nokka | มิถุนายน 2569 เชิงอรรถ: โคลงสี่สุภาพบทนี้ใช้ฉันทลักษณ์มาตรฐาน — บทละ 4 บาท บาทละ 2 วรรค วรรคหน้า 5 พยางค์ วรรคหลัง 2 พยางค์ สัมผัสบังคับระหว่างวรรคท้ายของบาทที่ 1, 2, 3 กับวรรคแรกของบาทถัดไป เนื้อหากล่าวถึงสามเทคโนโลยีหลักของการพัฒนาเว็บไซต์ในฐานะ "กาย — ใจ — วิญญาณ" ของทุกหน้าเว็บ

GitHub热门项目 | A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev | Stars: 123,517 | 48 stars today | 语言: HTML

By 2026, the PDF generation API market has evolved from "can it generate" to "does it generate well, fast, and securely." There are over 20 solutions on the market, ranging from a few euros per month for lightweight APIs to enterprise-grade SDKs, with price differences exceeding 100x. This article provides a horizontal comparison of 13 mainstream PDF Generation APIs across six core dimensions — rendering quality, developer experience, performance & stability, data security, pricing, and additional features — to help technical teams make optimal selections. 💡 If you're evaluating PDF generation solutions, check out ComPDF Generation API for an enterprise-grade PDF SDK that integrates viewing, editing, generation, and conversion in one package. Participating Products Overview Product Company/Background Core Positioning Starting Price (Official) ComPDF Generation API PDF Technologies (KDAN) Enterprise PDF Generation SDK + API Free 200 requests/month PDFGeneratorAPI Actual Reports (Estonia) Enterprise Document Automation €80/year (50 credits) CraftMyPDF Independent Team (Singapore) Drag-and-Drop Template Editor $0/month (50 PDFs) DocRaptor Expected Behavior (USA) Highest CSS Fidelity (PrinceXML) Free (5 watermarked docs/month), $15/month Orshot Independent Team Templates + API, supports images & video 30 free, $39/month APITemplate.io Independent Team Visual + HTML Dual Editor $0/month (50 PDFs), $19/month PDFMonkey Independent Team (France) Lightweight HTML Templates €0/month (20 docs), €5/month PDFShift Independent Team Minimalist HTML-to-PDF 50 free requests/month Api2Pdf Independent Team Pay-per-use, no monthly fee $1/month + usage IronPDF Iron Software (USA) .NET Ecosystem PDF Library $749/year Nutrient DWS Nutrient (formerly PSPDFKit) PDF Generation API 50 free requests/month Apryse Apryse (formerly PDFTron) Enterprise PDF SDK Contact sales (starting from $1,500) Adobe Document Generation API Adobe Cloud Document Generation Usage-based pricing Six-Dimension In-Dep

Thariq Shihipar, engineering lead for the Claude Code team, recently published a blog post (Using Claude Code: The Unreasonable Effectiveness of HTML) arguing that HTML, with its richer visualizations, color, and interactivity, improves the productivity of human-agent communication in many settings, especially when compared to default Markdown outputs. By Bruno Couriol

When I started learning web development, I discovered that creating a webpage is more than making it look good. It is also important to make websites accessible and easy for everyone to use. Two concepts that helped me improve my website were semantic HTML and web accessibility. Semantic HTML means using HTML elements according to their purpose instead of using generic elements for everything. Semantic elements such as , , , , , and make the structure of a webpage clear. They improve readability, help search engines understand the content, and make websites easier for people using screen readers. Before (Non-Semantic HTML) My Website Welcome to my website. After (Semantic HTML) <h1>My Website</h1> Welcome to my website. The semantic version is much easier to understand because each element clearly describes its purpose. During my accessibility audit, I found several improvements that made my website more user-friendly. The first issue was that images needed descriptive alternative text. I added meaningful alt attributes so screen readers can describe the images to users who cannot see them. The second improvement was the heading hierarchy. I used one for the page title and organized the remaining sections with headings. This creates a logical structure that is easier to navigate. The third improvement involved descriptive links. Instead of using vague text, I changed links to clearly describe where they lead. For example, I used "Visit GitHub" instead of a generic phrase. I also ensured that the HTML document included the lang="en" attribute and that all form fields had properly associated elements. These small changes improve accessibility and usability for everyone. Working with semantic HTML and accessibility has shown me that building websites is not only about appearance but also about creating experiences that everyone can use. As I continue learning web development, I will continue applying these best practices in all my projects. My Portfolio Portfolio Websi

GitHub热门项目 | from vibe coding to agentic engineering - practice makes claude perfect | Stars: 59,083 | 329 stars today | 语言: HTML

What is a Link? Definition A link is an interactive element that redirects the user to a new location which can be another section inside the current page, modifying the URL with a # parameter, or a new page. It can be used to download a file. Once activated, it takes the user to the URL set in its href. The browser records that navigation in its history, so the user can return to the previous page using the back button. Semantic The elements needs the attribute href with a valid URL or an IDREF pointing to a section inside the current page to have the semantic value of a link, otherwise it will be considered as generic . <a href= "/URL" > Go to main page </a> Keyboard Interaction It can only be activated by pressing the key Enter . If the key Space is pressed while the focus is on the link, the page will scroll down. Screen Reader Interaction Screen Readers, generally, announce the links in the following way: Link, [accessible name of the link] . It is extremely important to provide a descriptive and correct accessible name to the element. Bad Practice It is completely unnaceptable, a bad practice and goes against the native behavior of the element, forcing it to behave as a button by doing the following: <a href= "javascript:void(0)" onclick= "openModal()" > Open Menu </a> <a href= "#" role= "button" onclick= "button()" > Link with role button </a> If you need to do this, it means that you need a link. What is a button? Definition A button is an interactive element that dispatches an action inside the page where it is located. It does not redirect the user to another place or location nor modifies the url. The actions that are being dispatched can be: open a modal, play a video, post a comment, etc. Semantic The button needs the attribute type with a value according to its action: - type="button" : it is used when the button does not have a default behavior. - type="submit" : it is used when the button sends information to a server. - type="reset" : it is used to