国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

Home Web Front-end CSS Tutorial Is Embedding Images in CSS or HTML Using Data/Base64 a Good Practice?

Is Embedding Images in CSS or HTML Using Data/Base64 a Good Practice?

Nov 28, 2024 pm 06:09 PM

Is Embedding Images in CSS or HTML Using Data/Base64 a Good Practice?

Embedding Images in CSS or HTML Using Data/Base64

To optimize server requests, some developers embed small images (PNG & SVG) as BASE64 strings directly into CSS files. This technique is intended to save HTTP requests while maintaining image visibility.

Is data: URL embedding a good practice?

Embedding images with data: URLs can be beneficial in certain circumstances:

  • For very small CSS images (less than 32k after base64 encoding)
  • When used as CSS sprites (combining multiple images into one)
  • When IE compatibility is not a concern

Reasons to avoid data: URL embedding:

Despite its potential benefits, data: URL embedding has some notable drawbacks:

  • Browser compatibility: IE6 and IE7 do not support data: URLs. IE8 supports them only for resources up to 32k in size.
  • Page bloat: Data: URLs increase the size of HTML or CSS files by encoding images as text strings.
  • Uncacheable images: Embedded images become uncacheable, as they are loaded every time the containing page or style sheet is accessed.
  • Performance overhead: Base64 encoding increases image size by 33%. This can strain server resources, especially when serving gzipped content.

Embedding CSS and JS with data: URLs

While it may seem logical to embed CSS and JavaScript using data: URLs for the same reasons as images, this is generally not recommended. CSS and JavaScript files are typically much larger than CSS images, making data: URL embedding impractical and resource-intensive.

The above is the detailed content of Is Embedding Images in CSS or HTML Using Data/Base64 a Good Practice?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How can I include CSS only on some pages? How can I include CSS only on some pages? Jun 11, 2025 am 12:01 AM

There are three ways to selectively include CSS on a specific page: 1. Inline CSS, suitable for pages that are not frequently accessed or require unique styles; 2. Load external CSS files using JavaScript conditions, suitable for situations where flexibility is required; 3. Containment on the server side, suitable for scenarios using server-side languages. This approach can optimize website performance and maintainability, but requires balance of modularity and performance.

Flexbox vs Grid: Understanding the Key Differences in CSS Layout Flexbox vs Grid: Understanding the Key Differences in CSS Layout Jun 10, 2025 am 12:03 AM

Flexboxisidealforone-dimensionallayouts,whileGridsuitstwo-dimensional,complexlayouts.UseFlexboxforaligningitemsinasingleaxisandGridforprecisecontroloverrowsandcolumnsinintricatedesigns.

Creating an Auto-Closing Notification With an HTML Popover Creating an Auto-Closing Notification With an HTML Popover Jun 10, 2025 am 09:45 AM

The HTML popover attribute transforms elements into top-layer elements that can be opened and closed with a button or JavaScript. Popovers can be dismissed a number of ways, but there is no option to auto-close them. Preethi has a technique you can u

What is 'render-blocking CSS'? What is 'render-blocking CSS'? Jun 24, 2025 am 12:42 AM

CSS blocks page rendering because browsers view inline and external CSS as key resources by default, especially with imported stylesheets, header large amounts of inline CSS, and unoptimized media query styles. 1. Extract critical CSS and embed it into HTML; 2. Delay loading non-critical CSS through JavaScript; 3. Use media attributes to optimize loading such as print styles; 4. Compress and merge CSS to reduce requests. It is recommended to use tools to extract key CSS, combine rel="preload" asynchronous loading, and use media delayed loading reasonably to avoid excessive splitting and complex script control.

How to use Lotties in Figma How to use Lotties in Figma Jun 14, 2025 am 10:17 AM

In the following tutorial, I will show you how to create Lottie animations in Figma. We'll use two colorful designs to exmplify how you can animate in Figma, and then I'll show you how to go from Figma to Lottie animations. All you need is a free Fig

Breaking Boundaries: Building a Tangram Puzzle With (S)CSS Breaking Boundaries: Building a Tangram Puzzle With (S)CSS Jun 13, 2025 am 11:33 AM

We put it to the test and it turns out Sass can replace JavaScript, at least when it comes to low-level logic and puzzle behavior. With nothing but maps, mixins, functions, and a whole lot of math, we managed to bring our Tangram puzzle to life, no J

External vs. Internal CSS: What's the Best Approach? External vs. Internal CSS: What's the Best Approach? Jun 20, 2025 am 12:45 AM

ThebestapproachforCSSdependsontheproject'sspecificneeds.Forlargerprojects,externalCSSisbetterduetomaintainabilityandreusability;forsmallerprojectsorsingle-pageapplications,internalCSSmightbemoresuitable.It'scrucialtobalanceprojectsize,performanceneed

Does my CSS must be on lower case? Does my CSS must be on lower case? Jun 19, 2025 am 12:29 AM

No,CSSdoesnothavetobeinlowercase.However,usinglowercaseisrecommendedfor:1)Consistencyandreadability,2)Avoidingerrorsinrelatedtechnologies,3)Potentialperformancebenefits,and4)Improvedcollaborationwithinteams.

See all articles
<span id="na8oi"></span><bdo id="na8oi"><meter id="na8oi"></meter></bdo>