导航
×
   ❮   
HTML CSS JavaScript PHP Go Sass W3C Colors ECMS

JS 参考手册

JS 参考手册(字母排序)

JavaScript

JS Arrays JS Boolean JS Classes JS Dates JS Error JS Global JS Iterators JS JSON JS Maps JS Math JS Numbers JS Objects JS Operators JS Assignment JS Arithmetic JS Comparison JS Logical Operators JS Bitwise Operators JS Misc Operators JS Precedence JS Promises JS RegExp Patterns JS RegExp Reference JS Sets JS Statements JS Strings JS Typed Arrays JS Typed Reference

Window

Window Object Window Console Window History Window Location Window Navigator Window Screen

HTML DOM

HTML Documents HTML Elements HTML Attributes HTML Collection HTML NodeList HTML DOMTokenList HTML Styles
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundClip backgroundColor backgroundImage backgroundOrigin backgroundPosition backgroundRepeat backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cssFloat cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex

HTML Events

HTML Events HTML Event Objects HTML Event Properties HTML Event Methods

Web APIs

API Canvas API Console API Fetch API Fullscreen API Geolocation API History API MediaQueryList API Storage API Validation API Web

HTML 对象

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

HTML DOM style 属性


实例

向<h1> 元素添加红色:

document.getElementById("myH1").style.color = "red";
亲自试一试 »

页面下方有更多实例。


定义和用法

style 属性返回一个 CSSStyleDeclaration 对象,该对象表示元素的 style 属性。

style 属性用于使用不同的 CSS 属性获取或设置元素的特定样式。

注释: 无法通过为样式属性(例如元素)指定字符串来设置样式。 element.style = "color: red;". 要设置元素的样式,请将 "CSS" 属性附加到样式并指定一个值,如下所示:

element.style.backgroundColor = "red";   // set the background color of an element to red测试一下

如您所见,用于设置 CSS 属性的 JavaScript 语法与 CSS (backgroundColor 而非 background-color)略有不同。

有关所有可用属性的列表,请参见 样式对象参考

注释: style属性只返回在元素的内联样式属性,例如
<p style="color: red;">。无法使用此属性从文档或外部样式表的<head> 部分获取有关样式规则的信息。

但是,您可以使用 document.getElementsByTagName() 从<head> 访问<style> 元素:

var x = document.getElementsByTagName("STYLE")[0];   // get the first<style> element 测试一下

注释: 建议使用 style 属性而不是 element.setAttribute("style", "...") 方法,因为style属性不会覆盖属性中指定的其他CSS属性。


浏览器支持

属性
style Yes Yes Yes Yes Yes

语法

返回 style 样式属性:

element.style.property

设置 style 样式属性:

element.style.property = value

属性值

描述
value 指定指定属性的值。例如,对于 borderBottom 属性:

element.style.borderBottom = "2px solid red";

技术细节

返回值: CSSStyleDeclaration 对象,表示元素的样式属性
DOM 版本 Dom Level 2 CSS

更多实例

实例

获取 a<p> 元素上边框的值:

var x = document.getElementById("myP").style.borderTop;
亲自试一试 »

相关页面

CSS 教程: CSS 教程

CSS 参考手册: CSS Properties

HTML DOM 参考手册: Style Object Reference

HTML 参考手册: HTML<style> 标签


Copyright ©2026 蒙ICP备2026009383号 All Rights Reserved 提供的内容仅用于学习和测试,不保证内容的正确性。