


CSS implements fixed width on the left (right) side and adaptive width on the right (left) side --- Clear floating
老话长谈,css的不固定适应布局 不管是面试还是在平时的工作中,这样的布局形式一直都在用着,很常见,所以今天我就拿出来在唠叨一下, 既是给自己一个备忘存储,也是一个学习巩固的参考,知道大家都会,还是要记忆一下,不为其他,就为打好基础。
话说太多, 直接上代码,一看就能明白。 也许你会不屑一顾的说简单,可是我就喜欢写一些。。。。。。作为一个菜鸟,就要从基础努力学习才行。
方法多种, 你有新的方法可以补充说明,在此感谢!!
一、左边布局固定,右边自适应的布局
*{ margin:0; padding:0}
.whole{ width:100%;}
自适应测试
方法1: 左侧用float浮动,给固定宽度,右侧 左边距的距离==左侧层的宽度
css代码:
.left{ float:left;width:300px; background:red}
.right{ margin-left:300px; background:green; width:100%}
方法2:左边绝对定位absolate,右边代码没变化 还是右侧 左边距的距离==左侧层的宽度;
css代码:
.left{ position: absolute; left:0; width:300px; background:red}
.right{ margin-left:300px; background:green; width:100%}
方法3(个人喜好用):左右两边都用绝对定位absolute, 父级相对定义(不影响,建议加个相对定义,避免重叠)
css代码:
.left{ position: absolute; left:0; width:300px; background:red}
.right{ position: absolute; left:300px; background:green; width:100%}
二、左边布局不固定,右边布局固定-----方法一致,位置换下而已
自适应测试
方法1、左侧用左浮动,右边距==右侧层的宽度的负值(因为你是左撑开,距离右侧的距离不错层), 右侧的有浮动,固定宽度
.left{ float:left; width:100%; margin-right:-300px; background: red; }
.right{ float: right; width: 300px;background: blue;}
方法2、左右两边都用绝对定位absolute, 父级相对定义(不影响,建议加个相对定义,避免重叠) .left{ position: absolute; left:0; width: 100%; background: red;}
.right{ position: absolute; left:200px; width:200px; background: green;}
方法3、
清除浮动的方法就一笔带过, 都会
1、在浮动层的下面单独定义一个层 .clear{ clear:both}
2、伪类方法:after (用在父类的布局层上)-常用
.father::after,.father::before{ clear: both; content: ""; display: table;}
3. Parent elementSet overflow to hidden or auto, fixed height is also possible - not recommended
.father overflow: hidden; width: 100%; } / /overflow:auto; height:300px;
The writing is relatively simple. There are very few textual expressions. They are all codes. No matter how many ideas are mentioned, the actual code is not allowed. After using it, you will understand the meaning. Good luck. .

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

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

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.

HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.

HTML, CSS and JavaScript are the three pillars of web development. 1. HTML defines the web page structure and uses tags such as, etc. 2. CSS controls the web page style, using selectors and attributes such as color, font-size, etc. 3. JavaScript realizes dynamic effects and interaction, through event monitoring and DOM operations.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.
