Initial application of Div Css_html/css_WEB-ITnose-HTML Tutorial-php.cn

Home

Web Front-end

HTML Tutorial

Initial application of Div Css_html/css_WEB-ITnose

PHP中文网

Jun 24, 2016 am 11:40 AM

Preliminary application of Div CSS

Websites using DIV CSS mode have the following advantages: 1. Separation of performance and content 2. Simple code to improve page browsing speed 3. Easy to maintain and revise 4 , Improve search engine indexing efficiency of web pages.

There are three types of CSS placed in HTML files: inline, embedded, and external.

I feel that Css must be clear about its six selectors: 1. HTML selector 2. Class selector 3. ID selector 4. Pseudo-element selector 5. Association selector 6. Combination selector .

Css contains six major categories of attributes: 1. Font attributes 2. Text attributes 3. Background attributes 4. Border attributes 5. Mouse attributes 6. List attributes.

The following examples:

<!DOCTYPE HTML>
<html>
<head>
    <meta charset="UTF-8">
    <title>定义栏目区块</title>
    <link rel="stylesheet" href="./style.css" />
</head>
<body>
<div id="wrapper">
    <div>
        <h3>
            <a>标题</a>
        </h3>
    </div>
    <div>
        <ul>
            <li><a href="">一个大光头</a></li>
            <li><a href="">二个大光头</a></li>
            <li><a href="">三个大光头</a></li>
            <li><a href="">四个大光头</a></li>
            <li><a href="">五个大光头</a></li>
            <li><a href="">六个大光头</a></li>
            <li><a href="">七个大光头</a></li>
            <li><a href="">八个大光头</a></li>
            <li><a href="">九个大光头</a></li>
            <li><a href="">十个大光头</a></li>
            <li><a href="">11个大光头</a></li>
            <li><a href="">12个大光头</a></li>
        </ul>
    </div>
    <div>
        <a href=""></a>
    </div>
</div>
</body>
</html>

css

body{
    text-align : center;
    font : 12px Arial,宋体；
}
#wrapper{
    margin : 0 auto;
    padding : 0px;
    width : 300px;
    text-align : left;
}
.title{
    font : left;
    width : 100%;
    height : 24px;
    background : url(./images/titbg.gif);
}
.title h3{
    margin : 0px;
    padding : 0px;
    line-height : 24px;
    font-size : 12px;
    text-indent : 30px;
    background : url(./images/tittb.gif) no-repeat 3% 50%;
}
.list{
    width : 298px !important;
    width : 300px; 

    float : left;
    border : 1px solid #d8d8d8;
    border-top : 0px;
}
.list ul {    float : left;
    list-style-type : none;
    margin :0px;
    padding : 0px;
}
.list ul li {    float : left;
   line-height : 20px;
    margin : 0px 5px;
    width : 45%;
    background : url(./images/sidebottom.gif) repeat-x 50% bottom;
}
.list ul li a{
    padding-left : 12px;
    background : url(./images/bullet.gif) no-repeat 0 50%}
.one{
    height : 5px;
    width : 100%;    float : left;
    overflow : hidden
}
a:link, a:visited{
    text-decoration : none;
    color : green;
}
a:hover{
    position : relative;
    top : 1px;
    left : 1px;
    text-decoration : underline;
    color : black;
}

Rendering

Initial application of Div Css_html/css_WEB-ITnose

Statement

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

Difficulty in updating caching of official account web pages: How to avoid the old cache affecting the user experience after version update?Mar 04, 2025 pm 12:32 PM

The official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,

How to efficiently add stroke effects to PNG images on web pages?Mar 04, 2025 pm 02:39 PM

This article demonstrates efficient PNG border addition to webpages using CSS. It argues that CSS offers superior performance compared to JavaScript or libraries, detailing how to adjust border width, style, and color for subtle or prominent effect

How do I use HTML5 form validation attributes to validate user input?Mar 17, 2025 pm 12:27 PM

The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.

What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PM

The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PM

The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati

What are the best practices for cross-browser compatibility in HTML5?Mar 17, 2025 pm 12:20 PM

Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.

What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PM

The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex

What is the purpose of the <iframe> tag? What are the security considerations when using it?Mar 20, 2025 pm 06:05 PM

The article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.

See all articles