php开发之js修改页面css样式

来源：互联网发布：多益网络 m.duoyi.com 编辑：程序博客网时间：2024/05/22 04:46

在我以前的印象里，页面的字体属性，背景，等样式在页面加载后基本上都是固定的了，但是今天看到可以通过js修改页面的样式，觉得有必要和大家分享下。
test.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=GB18030"><title>css ajax </title><script type ="text/javascript" src ="test.js"></script><link href ="styles.css" type ="text/css" rel ="stylesheet"/></head><body ><table id ="table" ><tr><th id ="tableHead">Product Name</th></tr><tr><td id ="tableFirstLine">AirPlane</td></tr><tr><td id ="tableSecondLine">Big car</td></tr></table><br/><input type ="button" value ="set style 1" onclick ="setStyle1()"/>触发事件改变页面的样式<input type ="button" value ="set style 2" onclick ="setStyle2()"/>触发事件改变页面样式</body></html>

现在页面的文字样式，背景，字体大小，都是系统默认的，待会儿，给大家演示下运行结果，可以比较下哦

test.js

function setStyle1(){  //将表的风格改为style1    //获取html的引用    oTable = document.getElementById("table");    oTableHead = document.getElementById("tableHead");    oTableFirstLine =document.getElementById("tableFirstLine");    otableSecondLine = document.getElementById("tableSecondLine");    //设置风格     oTable.className ="Table1";     oTableHead.className ="TableHead1";     oTableFirstLine.className ="TableContent1";     oTableSecondLine.classNamee ="TableContent1";}function setStyle2(){    //将表格的风格改为style2    //获取html元素的引用    oTable = document.getElementById("table");    oTableHead = document.getElementById("tableHead");    oTableFirstLine =document.getElementById("tableFirstLine");    otableSecondLine = document.getElementById("tableSecondLine");    //设置风格     oTable.className ="Table2";     oTableHead.className ="TableHead2";     oTableFirstLine.className ="TableContent2";     oTableSecondLine.classNamee ="TableContent2";}

styles.css

/* @CHARSET "GB18030"; */.Table1{    border:DarkGreen 1px solid;    background-color:LightGreen;}.TableHead1{    font-family:Verdana,Arial;    font-weight:bold;    font-size:10pt;}.TableContent1{    font-family:Verdana,Arial;    font-size:10pt;}.Table2{    border:DarkBlue 1px solid;    background-color:LightBlue;}.TableHead2{    font-family:Verdana,Arial;    font-weight:bold;    font-size:10pt;}.TableContent2{    font-family:Verdana,Arial;    font-size:10pt;}

运行效果如下：
这里写图片描述

另外这些知识点可以用在UIWebView与js的交互上哦，下面给大家演示下运行及效果哦

iOS的demo地址：demo

0 0