CSS3 @font-face 规则
在 CSS3 之前,web 设计师必须使用已在用户计算机上安装好的字体。
通过 CSS3,web 设计师可以使用他们喜欢的任意字体。
当您您找到或购买到希望使用的字体时,可将该字体文件存放到 web 服务器上,它会在需要时被自动下载到用户的计算机上。
您“自己的”的字体是在 CSS3 @font-face 规则中定义的。
Firefox、Chrome、Safari 以及 Opera 支持 .ttf (True Type Fonts) 和 .otf (OpenType Fonts) 类型的字体。
Internet Explorer 9+ 支持新的 @font-face 规则,但是仅支持 .eot 类型的字体 (Embedded OpenType)。
注释:Internet Explorer 8 以及更早的版本不支持新的 @font-face 规则。
使用您需要的字体
在新的 @font-face 规则中,您必须首先定义字体的名称(比如 myFirstFont),然后指向该字体文件。
如需为 HTML 元素使用字体,请通过 font-family 属性来引用字体的名称 (hoverTreeFont).
先查看效果:http://hovertree.com/texiao/css/5.htm
完整HTML代码:
<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <meta name="viewport" content="width=device-width, initial-scale=1" /> <title>CSS3自定义字体 - 何问起</title><base target="_blank"/> <meta charset="utf-8" /> <style> @font-face { font-family: hoverTreeFont; src: url('http://hovertree.com/themes/fonts/Sansation_Light.ttf'),url('http://hovertree.com/themes/fonts/Sansation_Light.eot'); /* IE9+ */ } @font-face { font-family: hoverTreeFont; src: url('http://hovertree.com/themes/fonts/Sansation_Bold.ttf'),url('http://hovertree.com/themes/fonts/Sansation_Bold.eot'); /* IE9+ */ font-weight: bold; } .hvtbold { font-family: hoverTreeFont; } .hvtbold a{font-family: hoverTreeFont;}a{color:blue} div{font-size:16px;font-family:Arial, Sans-Serif,NSimSun,"\5b8b\4f53";border:1px solid green;margin:5px;}</style></head><body> <div class="hvtbold"> 加了自定义字体的效果:<br /><br /> With CSS3, websites can <b>finally</b> use fonts other than the pre-selected "web-safe" fonts. <br /><br />何问起 hovertree.com <br /><br /><b>柯乐义http://keleyi.com</b><br /><br /><a href="http://hovertree.com/down/">ASP.NET CMS源代码下载</a><br /><br /><a href="http://hovertree.com/hvtart/bjae/is0xr36t.htm">原文</a> <a href="http://hovertree.com/">首页</a> <a href="http://hovertree.com/down/">更多特效</a> </div> <div>没加自定义字体的效果:<br /><br /> With CSS3, websites can <b>finally</b> use fonts other than the pre-selected "web-safe" fonts. <br /><br />何问起 hovertree.com <br /><br /><b>柯乐义http://keleyi.com</b><br /><br /><a href="http://hovertree.com/down/">ASP.NET CMS源代码下载</a><br /><br /><a href="http://hovertree.com/hvtart/bjae/is0xr36t.htm">原文</a> <a href="http://hovertree.com/">首页</a> <a href="http://hovertree.com/down/">更多特效</a> </div></body></html>
web前端:

The function of HTML is to define the structure and content of a web page, and its purpose is to provide a standardized way to display information. 1) HTML organizes various parts of the web page through tags and attributes, such as titles and paragraphs. 2) It supports the separation of content and performance and improves maintenance efficiency. 3) HTML is extensible, allowing custom tags to enhance SEO.

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: 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 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.

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

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.

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.


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