search
HomeWeb Front-endHTML Tutorialcss笔记:如何让一个div居于页面正中间_html/css_WEB-ITnose

如何让一个div居于页面中间,我今天说的是让一个div水平居中同时垂直居中,而不是简单的top:50%,left:50%。当然,我们就按一开始的思路写一下:top,left属性都设为50%,看一下效果。

<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>div居于页面正中间</title>    <style type="text/css">        *{            margin: 0;            padding: 0;            background-color: #EAEAEA;        }        div{            width: 200px;            height: 200px;            background-color: #1E90FF;        }        .center-in-center{            position: absolute;            top: 50%;            left: 50%;        }    </style></head><body>    <div class="center-in-center"></div></body></html>

从我的截图可以看出,div的左顶点刚好在页面的中心点处。现在的思路是,如何移动div然后让div的中心和页面中心重合,即可达到我们一开始想要的结果。在这里我要介绍一种方法,使用css的transform属性。由于这个属性的值很多,我这里就不一一介绍,只是说一下它的translate。我们给刚才的center-in-center类加上translate(0,-50%)

.center-in-center{    position: absolute;    top: 50%;    left: 50%;    transform: translate(0, -50%);}

如果使用过这个属性,应该知道怎么回事了。translate(0, -50%),第一个值是指水平移动量,和tansform的translateX效果一样,第二个值那就是垂直方向偏移量,但为负数时,代表反方向移动。现在我们只需tanslate(-50%,-50%)就可以达到div既水平居中同时垂直居中。

附上完整代码与效果:

<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>div居于页面正中间</title>    <style type="text/css">        *{            margin: 0;            padding: 0;            background-color: #EAEAEA;        }        div{            width: 200px;            height: 200px;            background-color: #1E90FF;        }        .center-in-center{            position: absolute;            top: 50%;            left: 50%;            -webkit-transform: translate(-50%, -50%);            -moz-transform: translate(-50%, -50%);            -ms-transform: translate(-50%, -50%);            -o-transform: translate(-50%, -50%);            transform: translate(-50%, -50%);        }    </style></head><body>    <div class="center-in-center"></div></body></html>

说多两句,这也可以是一道非常不错的面试题,大家可以留意一下。当然还有其他解法,这里就不再班门弄斧了。另外,css3的transform是一个非常强大的属性,可以做很多变换3d之类的炫酷效果,如果有兴趣可以深入研究一下。但前端有一个不得不说的痛,浏览器兼容性问题。。。其他的浏览器还好说,万恶的IE,IE9支持一小部分属性,IE9以下全部不支持。如果还深爱着IE,那只能另辟蹊径,甚至不惜用js去解决咯!又快到周末了,又可以好好睡觉了,真好!

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
HTML: Is It a Programming Language or Something Else?HTML: Is It a Programming Language or Something Else?Apr 15, 2025 am 12:13 AM

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML: Building the Structure of Web PagesHTML: Building the Structure of Web PagesApr 14, 2025 am 12:14 AM

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.

From Text to Websites: The Power of HTMLFrom Text to Websites: The Power of HTMLApr 13, 2025 am 12:07 AM

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

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

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

The Role of HTML: Structuring Web ContentThe Role of HTML: Structuring Web ContentApr 11, 2025 am 12:12 AM

The role of HTML is to define the structure and content of a web page through tags and attributes. 1. HTML organizes content through tags such as , making it easy to read and understand. 2. Use semantic tags such as, etc. to enhance accessibility and SEO. 3. Optimizing HTML code can improve web page loading speed and user experience.

HTML and Code: A Closer Look at the TerminologyHTML and Code: A Closer Look at the TerminologyApr 10, 2025 am 09:28 AM

HTMLisaspecifictypeofcodefocusedonstructuringwebcontent,while"code"broadlyincludeslanguageslikeJavaScriptandPythonforfunctionality.1)HTMLdefineswebpagestructureusingtags.2)"Code"encompassesawiderrangeoflanguagesforlogicandinteract

HTML, CSS, and JavaScript: Essential Tools for Web DevelopersHTML, CSS, and JavaScript: Essential Tools for Web DevelopersApr 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.

The Roles of HTML, CSS, and JavaScript: Core ResponsibilitiesThe Roles of HTML, CSS, and JavaScript: Core ResponsibilitiesApr 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.

See all articles

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.