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JavaScript & HTML DOM Reference Manual

Overview

JavaScript Object

JavaScript Array Object JavaScript Boolean Object JavaScript Date Object JavaScript Math Object JavaScript Number Object JavaScript String Object JavaScript RegExp Object JavaScript Global properties / functions JavaScript Operator

Browser Object

Window Object Navigator Object Screen Object History Object Location Object

DOM Object

HTML DOM Document Object HTML DOM Element object HTML DOM Attribute object HTML DOM Event object

HTML Object

<a> <area> <audio> <base> <blockquote> <body> <button> <canvas> <col> <colgroup> <datalist> <del> <details> <dialog> <embed> <fieldset> <form> <iframe> <frameset > <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> - range <input> - password <input> - radio <input> - reset <input> - search <input> - submit <input> - text <input> - time <input> - url <input> - week <keygen> <link> <label> <legend> <li> <map> <menu> <menuItem> <meta> <meter> <object> <ol> <optgroup> <option> <param> <progress> <q> <script> <select> <source> <style> <table> <td> <th> <tr> <textarea> <title> <time> <track> <video>

HTML DOM Style backgroundSize property

Previous: HTML DOM Style backgroundOrigin property

Next: HTML DOM Style backfaceVisibility property

Examples

Specify the background image size:

document.getElementById("myDIV").style.backgroundSize="60px 120px";

Definition and Usage

backgroundSize property sets or returns the size of the background image.

Browser Support

IE9 +, Firefox, Opera, Chrome and Safari support backgroundSize property.

grammar

Back backgroundSize properties:

object .style.backgroundSize

Setting backgroundSize properties:

object .style.backgroundSize="auto|length|cover|contain|intial|inherit"

Property Value

值	描述
auto	默认值。背景图像包含它的宽度和高度。
length	设置背景图像的宽度和高度。第一个设置宽度，第二个值设置高度。如果只给出一个值，则第二个值被设置为 "auto"。
percentage	以父元素的百分比设置背景图像的宽度和高度。第一个设置宽度，第二个值设置高度。如果只给出一个值，则第二个值被设置为 "auto"。
cover	此时会保持图像的纵横比，并将图像缩放成将完全覆盖背景区域的最小尺寸。背景图像的一些部分可能不会显示在背景定位区域内。
contain	此时会保持图像的纵横比，并将图像缩放成将适合内容区域的最大尺寸。
initial	设置该属性为它的默认值。请参阅 initial 。
inherit	从父元素继承该属性。请参阅 inherit 。

technical details

Defaults:	auto
return value:	String representing the background-size attribute of the element.
CSS version	CSS3

related articles

CSS Reference Manual: background-size property

Previous: HTML DOM Style backgroundOrigin property

Next: HTML DOM Style backfaceVisibility property