css不用图片美化按钮

<html> 
<style> 
.tb{width:100%;height:1px;overflow:hidden;background:rgb(250,100,0);margin:0 1px;} 
.lr{width:100%;height:20px;overflow:hidden;border-left:1px solid rgb(250,100,0);border-right:1px  
solid rgb(250,100,0);} 
.bg{width:100%;height:20px;overflow:hidden;} 
.button{position:relative;width:100%;height:20px;top:-20px;font- 
size:9pt;border:0;background:none;} 
</style> 
<div style="float:left;width:100;"> 
<div class=tb></div> 
<div class=lr> 
<div class=bg id=bg></div> 
<input class=button id=button type=button value="美化了的按钮"> 
</div> 
<div class=tb></div> 
</div> 
<script> 
function rgb(){ 
ID=arguments[0] 
oRGB=eval(arguments[1]) 
nRGB=eval(arguments[2]) 
var IMG="" 
for(i=20;i>0;i=i-2){ 
RGB="rgb("+(oRGB[0]-1)+","+(oRGB[1]-1)+","+(oRGB[2]-1)+")" 
IMG+="<img style=\"width:100%;height:1px;background:"+RGB+"\">" 
           } 
for(i=20;i>0;i=i-2){ 
RGB="rgb("+(nRGB[0]-1)+","+(nRGB[1]-1)+","+(nRGB[2]-1)+")" 
IMG+="<img style=\"width:100%;height:1px;background:"+RGB+"\">" 
           } 
eval(ID+".innerHTML=IMG") 
} 
rgb("bg",[255,180,20],[255,140,20]) 
button.onmouseover=function(){rgb("bg",[255,200,20],[255,160,20])} 
button.onmouseout=function(){rgb("bg",[255,180,20],[255,140,20])} 
</ script>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

css不用图片美化按钮_经验交流