<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" Content="text/html; charset=utf-8" /><title>style样式</title><style type="text/css">*{font-size:12px;}#txt{ height:400px; width:600px; border:#333 solid 1px; padding:5px;}p{ line-height:18px; text-indent:2em;}</style></head><body> <h2 id="con">JavaScript课程</h2> <div id="txt"> <h5>JavaScript为网页添加动态效果并实现与用户交互的功能。</h5> <p>1. JavaScript入门篇，让不懂JS的你，快速了解JS。</p> <p>2. JavaScript进阶篇，让你掌握JS的基础语法、函数、数组、事件、内置对象、BOM浏览器、DOM操作。</p> <p>3. 学完以上两门基础课后，在深入学习JavaScript的变量作用域、事件、对象、运动、cookie、正则表达式、ajax等课程。</p> </div> <form> <input type="button" value="改变颜色" onclick="colorchange()"> <input type="button" value="改变宽高" onclick="whchange()"> <input type="button" value="隐藏内容" onclick="hidetxt()"> <input type="button" value="显示内容" onclick="showtxt()"> <input type="button" value="取消设置" onclick="chancel()"> </form> <script type="text/javascript">function colorchange() { var ichar = document.getElementById('txt'); ichar.style.color = "red"; ichar.style.backgroundColor = "#ccc"; } function whchange() { var ichar = document.getElementById('txt'); ichar.style.width = "500px"; ichar.style.height = "600px"; } function hidetxt(){ var ichar = document.getElementById('txt'); ichar.style.display = "none"; } function showtxt(){ if (confirm(确定取消设置吗？)) { var ichar = document.getElementById('txt'); ichar.style.color = "#000"; ichar.style.backgroungColor = "#fff"; ichar.style.width = "600px"; ichar.style.height = "400px"; ichar.style.display = "block"; } }function chancel(){ var ichar = document.getElementById('txt'); ichar.style.display = "block"; } </script></body></html>
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