Home Web Front-end HTML Tutorial CSS study notes 2_html/css_WEB-ITnose

CSS study notes 2_html/css_WEB-ITnose

Jun 24, 2016 am 11:53 AM

When we browse the website, we will click some links. These links have different effects before and after clicking. These effects are done using pseudo-element selectors


Pseudo element selector:


It is to pre-define some selectors in HTML and become pseudo-elements

format: tag name: pseudo-element: class name tag name.class name: Pseudo element


Hyperlink status:

a :link : Hyperlink unclicked status

a :visited Status after being visited

a :hover Status when the cursor moves to the hyperlink (not clicked) ->Mouseover Stop

a :active Status when clicking a hyperlink

Usage sequence: L - V - H - A, before and after clicking It is a status

It is best to use IE browser to test, some browsers may not see the effect

 <style type="text/css">        /*未访问*/       a:link{            background-color: #06F;  color: #FFF;            text-decoration: none; font-size: 15px;       }        /*鼠标悬停*/        a:hover{             background-color: #FFF; color: #F00;            font-size: 20px;        }        /*点击效果*/        a:active{            background-color: #000; color: #FFF;            font-size: 25px;        }        /*点击后效果*/        a:visited{            background-color: #FF9; color: #000;            text-decoration: line-through;        }    </style>
Copy after login


The paragraph tag also has the above effect

p:first-line: the first line of text in the paragraph

p:first-letter: the first letter in the paragraph

:focus: element with focus (ps: not supported by IE6, FIrefox, You can see the effect on google)

    <style type="text/css">              div:hover{   /*类似于悬停效果 一样可以加在div上*/            background-color: #F00;            color: #FFF;        }        input :focus{            background-color: #F0F;        }    </style></head><body><hr/><a href="http://www.sina.com.cn" target="_blank">伪元素选择器演示</a><input type="text" /><input type="text" /><hr/>
Copy after login

Combined application of CSS styles:

css can be used in conjunction with many tags in html

<head lang="en">    <meta charset="UTF-8">    <style type="text/css">    ul{        list-style-type:none;        list-style-image: url(imgs/1.png);    }        table{            border-bottom: #0C0 double 3px;            border-left:#F00 solid 3px;/*solid 实线*/            border-right:#FC0 dashed 3px;/*dashed 虚*/            border-top:#000 groove 3px;            width: 600px;        }        table td{            border: #0CF dotted 2px;            padding: 20px;        }        div{            border: #0F0 dashed 2px;            height: 50px; width: 300px;        }        input{            border: none;            border-bottom: #0CF 1px solid;        }        .Per{            border: none;        }    </style>    <title>asd</title></head><body>        姓名:<input type="text" />        年龄:<input type="text" />        <hr/>        <div> div区域 </div>        <hr/>        <table ><!--html里<table border:.....>,与css结合后,在style设置即可-->            <tr>                <td><input type="text" class="Per"> </td> <td>  单元格二  </td>            </tr>            <tr>                <td>  单元格三  </td> <td>  单元格四  </td>            </tr>        </table>        <hr/>      <ul>          <li>你好</li>          <li>你好</li>          <li>你好</li>          <li>你好</li>      </ul></body>
Copy after login


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

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.

Undress AI Tool

Undress AI Tool

Undress images for free

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)

Is HTML easy to learn for beginners? Is HTML easy to learn for beginners? Apr 07, 2025 am 12:11 AM

HTML is suitable for beginners because it is simple and easy to learn and can quickly see results. 1) The learning curve of HTML is smooth and easy to get started. 2) Just master the basic tags to start creating web pages. 3) High flexibility and can be used in combination with CSS and JavaScript. 4) Rich learning resources and modern tools support the learning process.

The Roles of HTML, CSS, and JavaScript: Core Responsibilities The Roles of HTML, CSS, and JavaScript: Core Responsibilities Apr 08, 2025 pm 07:05 PM

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.

Understanding HTML, CSS, and JavaScript: A Beginner's Guide Understanding HTML, CSS, and JavaScript: A Beginner's Guide Apr 12, 2025 am 12:02 AM

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

What is an example of a starting tag in HTML? What is an example of a starting tag in HTML? Apr 06, 2025 am 12:04 AM

AnexampleofastartingtaginHTMLis,whichbeginsaparagraph.StartingtagsareessentialinHTMLastheyinitiateelements,definetheirtypes,andarecrucialforstructuringwebpagesandconstructingtheDOM.

Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors? Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors? Apr 04, 2025 pm 11:54 PM

GiteePages static website deployment failed: 404 error troubleshooting and resolution when using Gitee...

How to implement adaptive layout of Y-axis position in web annotation? How to implement adaptive layout of Y-axis position in web annotation? Apr 04, 2025 pm 11:30 PM

The Y-axis position adaptive algorithm for web annotation function This article will explore how to implement annotation functions similar to Word documents, especially how to deal with the interval between annotations...

How to use CSS3 and JavaScript to achieve the effect of scattering and enlarging the surrounding pictures after clicking? How to use CSS3 and JavaScript to achieve the effect of scattering and enlarging the surrounding pictures after clicking? Apr 05, 2025 am 06:15 AM

To achieve the effect of scattering and enlarging the surrounding images after clicking on the image, many web designs need to achieve an interactive effect: click on a certain image to make the surrounding...

HTML, CSS, and JavaScript: Essential Tools for Web Developers HTML, CSS, and JavaScript: Essential Tools for Web Developers Apr 09, 2025 am 12:12 AM

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.

See all articles