当div所定义的区域的内容达到一定程度时，在div标签里面嵌入css样式表，定义overflow的属性值，设置滚动条相关的属性。
<style tyle="text/css">
.testDiv{
border-style: solid ;
border-width: 50px ;
border-color: pink ;
position: absolute ;
top:200px ;
left:300px ;
height:200px ;
width:300px ;
overFlow-x: scroll ;
overFlow-y: hidden ;
scrollBar-face-color: green;
scrollBar-hightLight-color: red;
scrollBar-3dLight-color: orange;
scrollBar-darkshadow-color:blue;
scrollBar-shadow-color:yellow;
scrollBar-arrow-color:purple;
scrollBar-track-color:black;
scrollBar-base-color:pink;
}
</style>
注：
1. overFlow:
visible 却省值，没有滚动条，根据内容自动扩撑区域的大小，即定义的区域无效
scroll 总是显示滚动条
hidden 没有滚动条，超出区域的内容不可见
auto 根据内容自动判断是否添加滚动条
2.滚动条颜色属性：
face-color：滑块颜色
hightlight-color：高亮颜色
3dlight-color：三维光线颜色
darkshadow-color：暗影颜色
shadow-color：阴影颜色
arrow-color：箭头颜色
track-color：滑道颜色
base-color：滚动条的主要颜色，其中包含滚动按钮和滚动滑块
3.overFlow-x overFlow-y
visible 却省值，没有滚动条，根据内容自动扩撑区域的大小，即定义的区域无效
scroll 总是显示滚动条
hidden 没有滚动条，超出区域的内容不可见
auto 根据内容自动判断是否添加滚动条
<div style="WIDTH: 120; HEIGHT: 140; BACKGROUND-COLOR: #0000C6; OVERFLOW: scroll; scrollbar-face-color:#70807d; scrollbar-arrow-color:#ffffff; scrollbar-highlight-color:#ffffff; scrollbar-3dlight-color:#70807d; scrollbar-shadow-color:#ffffff; scrollbar-darkshadow-color:#70807d; scrollbar-track-color:#ffffff">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-3dlight-color:#FF0033; scrollbar-arrow-color:#FFFFFF; scrollbar-track-color:#FFFF33; scrollbar-darkshadow-color:#FFFF33; scrollbar-face-color:#FF0033; scrollbar-highlight-color:#FFFFFF; scrollbar-shadow-color:#FF0033">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-3dlight-color:#FF0033; scrollbar-arrow-color:#FFFFFF; scrollbar-track-color:#FFFF33; scrollbar-darkshadow-color:#FFFF33; scrollbar-face-color:#FF0033; scrollbar-highlight-color:#FFFFFF; scrollbar-shadow-color:#FF0033">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; SCROLLBAR-FACE-COLOR: EAECEC; SCROLLBAR-HIGHLIGHT-COLOR: EAECEC; SCROLLBAR-SHADOW-COLOR: BLACK; SCROLLBAR-3DLIGHT-COLOR: EAECEC; SCROLLBAR-ARROW-COLOR: EAECEC; SCROLLBAR-TRACK-COLOR: FFFFFF; SCROLLBAR-DARKSHADOW-COLOR: EAECEC">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140;OVERFLOW: scroll; scrollbar-3dlight-color:#595959; scrollbar-arrow-color:#FFFFFF; scrollbar-base-color:#CFCFCF; scrollbar-darkshadow-color:#FFFFFF; scrollbar-face-color:#CFCFCF; scrollbar-highlight-color:#FFFFFF; scrollbar-shadow-color:#595959">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #FFFFFF; scrollbar-shadow-color: #D2E5F4; scrollbar-highlight-color: #D2E5F4; scrollbar-3dlight-color: #FFFFFF; scrollbar-darkshadow-color: #FFFFFF; scrollbar-track-color: #FFFFFF; scrollbar-arrow-color: #D2E5F4">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-shadow-color: #ffffff; scrollbar-highlight-color: #ffffff; scrollbar-face-color: #d9d9d9; scrollbar-3dlight-color: #d9d9d9; scrollbar-darkshadow-color: #d9d9d9; scrollbar-track-color: #ffffff; scrollbar-arrow-color: #ffffff">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-shadow-color: #FFFFFF; scrollbar-highlight-color: #FFFFFF; scrollbar-arrow-color: #FFFFFF; scrollbar-face-color: #59ADBB; scrollbar-track-color: #FFFFFF; scrollbar-3dlight-color: #59ADBB; scrollbar-darkshadow-color: #59ADBB">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #FFFFFF; scrollbar-shadow-color: #FFC300; scrollbar-highlight-color: #FFFFFF; scrollbar-3dlight-color: #FFC300; scrollbar-darkshadow-color: #FFFFFF; scrollbar-track-color: #FFFFFF; scrollbar-arrow-color: #FFC300">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-3dlight-color:5A5227; scrollbar-arrow-color:FFF8C5; scrollbar-base-color:DDD38D; scrollbar-darkshadow-color:FFF8C5; scrollbar-face-color:DDD38D; scrollbar-highlight-color:FFF8C5; scrollbar-shadow-color:5A5227">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #9EBFE8; scrollbar-shadow-color: #FFFFFF; scrollbar-highlight-color: #FFFFFF; scrollbar-3dlight-color: #9EBFE8; scrollbar-darkshadow-color: #9EBFE8; scrollbar-track-color: #FFFFFF; scrollbar-arrow-color: #FFFFFF">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #DB52BC; scrollbar-shadow-color: #E994D6; scrollbar-highlight-color: #E994D6; scrollbar-3dlight-color: #DB52BC; scrollbar-darkshadow-color: #DB52BC; scrollbar-track-color: #E994D6; scrollbar-arrow-color: #FFFFFF">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #333333; scrollbar-shadow-color: #333333; scrollbar-highlight-color: #666666; scrollbar-3dlight-color: #101010; scrollbar-darkshadow-color: #070707; scrollbar-track-color: #101010; scrollbar-arrow-color: #000000">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #333333; scrollbar-shadow-color: #808080; scrollbar-highlight-color: #333333; scrollbar-3dlight-color: #808080; scrollbar-darkshadow-color: #333333; scrollbar-track-color: #191919; scrollbar-arrow-color: #CCCCCC">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color:#FFC4E1; scrollbar-highlight-color:#FFFFFF; scrollbar-3dlight-color:#FF95CA; scrollbar-darkshadow-color:#FFB5DA; scrollbar-shadow-color:#FF6AB5; scrollbar-arrow-color:#FFFFFF; scrollbar-track-color:#FFDDEE">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #DBEBFE; scrollbar-shadow-color: #B8D6FA; scrollbar-highlight-color: #FFFFFF; scrollbar-3dlight-color: #DBEBFE; scrollbar-darkshadow-color:#458CE4; scrollbar-track-color: #FFFFFF; scrollbar-arrow-color: #458CE4">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #FFFFFF; scrollbar-shadow-color: #885C10; scrollbar-highlight-color: #F8ECD8; scrollbar-3dlight-color: #885C10; scrollbar-darkshadow-color: #F8ECD8; scrollbar-track-color: #F8ECD8; scrollbar-arrow-color: #885C10">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #222222; scrollbar-highlight-color: #FFFFFF; scrollbar-3dlight-color: #222222; scrollbar-shadow-color: #FFFFFF; scrollbar-darkshadow-color: #222222; scrollbar-track-color: #222222; scrollbar-arrow-color: #222222">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-face-color: #FDDEE8; scrollbar-shadow-color: #FDDEE8; scrollbar-highlight-color: #ffffff; scrollbar-3dlight-color: #FDCFDD; scrollbar-darkshadow-color: #FDCFDD; scrollbar-track-color: FFF6F9; scrollbar-arrow-color: #FEA6C0">
文字内容
</div>
| <div style="WIDTH: 120; HEIGHT: 140; OVERFLOW: scroll; scrollbar-3dlight-color:#CCFF00; scrollbar-arrow-color:#FFFFFF; scrollbar-track-color:#FFFFFF; scrollbar-darkshadow-color:#CCFF00; scrollbar-face-color:#CCFF00; scrollbar-
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