Home > Article > Web Front-end > How to change css style using js
Method: 1. Use "Object.style.Attribute name="value""; 2. Use "Object.style.cssText="Attribute name:Value""; 3. Use "Object.setAttribute( "class","class name")"; 4. Use the setAttribute() function to change the css file.
The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.
Javascript methods to modify css style (four types)
The first one: use object.style.property name="value"
to Modify the class name of the style sheet.
For example:
div1.style.width="100px";
Second: Use Object.style.cssText="Attribute name: value"
to modify the embedded css.
Example:
div1.style.cssText="width:100px;height:100px;background: palevioletred;";
Third method: Use object.setAttribute("class","class name")
to modify the class name of the style sheet.
For example:
div1.setAttribute("class","div2")
Fourth method: Use the setAttribute() function to change the external css file, thereby changing the css of the element.
For example:
div1.setAttribute("href","css2.css");
html code:
1d92bf69482700fca057d30f08918a96 c8f1bd2f7739fc4bad8f55bac472bd1f116b28748ea4df4d9c2150843fecfba68 6fd9c25e533a9d166641cb87d2448bc6216b28748ea4df4d9c2150843fecfba68 4dd653285949af25c14b463618444190316b28748ea4df4d9c2150843fecfba68 dd2751f7d31c01d83ceca356d9e60c77416b28748ea4df4d9c2150843fecfba68
css1.css file
@charset "utf-8"; #divBtn1,#divBtn2,#divBtn3,#divBtn4{ width:100px; height:100px; margin-bottom: 10px; } #divBtn1{background:yellowgreen;} #divBtn2{background:paleturquoise;} #divBtn3{border:1px solid #ccc} #divBtn4{background:blue;} .div3{width:100px;height:100px;background:blueviolet}
css2.css file
@charset "utf-8"; #divBtn4{background: greenyellow;} #divBtn1,#divBtn2,#divBtn3,#divBtn4{ width:200px; height:200px; border:1px solid #ccc; margin-bottom: 10px; } #divBtn1{background:yellowgreen;} #divBtn2{background:paleturquoise;} .div3{width:100px;height:100px;background:blueviolet}
js code:
<script> /* *javascript动态修改css效果的方法(四种) * 第一种:div1.style.width="100px"; * 第二种:div2.style.cssText="width:100px;height:100px;background: palevioletred;"; * 第三种:div1.setAttribute("class","div2")和div3.className="div3";//效果一样 * 第四种:使用更改外联的css文件,从而改变元素的css * obj.setAttribute("href","css/css2.css"); * */ function changeCss1(){ var div1=document.getElementById("divBtn1"); div1.style.width="100px"; div1.style.height="100px"; div1.style.background="red"; } function changeCss2(){ var div2=document.getElementById("divBtn2"); div2.style.cssText="width:100px;height:100px;background: palevioletred;"; //cssText会覆盖之前的设置 无兼容性问题 写法和css样式表相同 } function changeCss3(){ var div3=document.getElementById("divBtn3"); //div3.className="div3";//效果一样 div3.setAttribute("class","div3"); } function changeCss4(){ var obj=document.getElementById("cssLink"); obj.setAttribute("href","css/css2.css"); } </script>
For more programming-related knowledge, please visit: Programming Video! !
The above is the detailed content of How to change css style using js. For more information, please follow other related articles on the PHP Chinese website!