（1）web常见控件介绍
（2）js无鼠标键盘操作时跳转页面
<html>
<head>
<script type="text/javascript">
function screensaver(settings){
this.settings = settings;
this.ntimeout = this.settings.timeout;
document.body.screensaver = this;
// link in to body events
document.body.onmousemove = screensaver.prototype.onevent;
document.body.onmousedown = screensaver.prototype.onevent;
document.body.onkeydown = screensaver.prototype.onevent;
document.body.onkeypress = screensaver.prototype.onevent;
var pthis = this;
var f = function(){pthis.timeout();}
this.timerid = window.settimeout(f, this.ntimeout);
}
screensaver.prototype.timeout = function(){
if ( !this.saver ){
window.location = 'http://www.baidu.com';
}
}
screensaver.prototype.signal = function(){
if ( this.saver ){
this.saver.stop();
}
window.cleartimeout(this.timerid);
var pthis = this;
var f = function(){pthis.timeout();}
this.timerid = window.settimeout(f, this.ntimeout);
}
screensaver.prototype.onevent = function(e)
{
this.screensaver.signal();
}
var saver;
function initscreensaver(){
//blort;
saver = new screensaver({timeout:5000});
}
function window.onload(){
initscreensaver();
}
</script>
</head>
<body>
</p>5秒不动就跳转
</body>
</html>
（3）css书写规范
https://www.cnblogs.com/lxb98117/p/w3c-norm.html
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