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js+css实现页面图层定位效果

阅读：4852 输入：2016-12-28 08:01:26

<HTML>
<HEAD>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<TITLE>始终在页面固定位置的层效果</TITLE>
<STYLE>.div {
 BORDER-RIGHT: #0000ff 2px solid; BORDER-TOP: #0000ff 2px solid; FONT-SIZE: 12px; Z-INDEX: 1000; BORDER-LEFT: #0000ff 2px solid; LINE-HEIGHT: 90px; BORDER-BOTTOM: #0000ff 2px solid; POSITION: absolute; BACKGROUND-COLOR: #efefef
}
</STYLE>
</HEAD>
<BODY leftMargin=0 topMargin=0 marginheight="0" marginwidth="0">
<DIV class=div id=Javascript.Div1 style="WIDTH: 240px; HEIGHT: 90px"
align=center>正中...</DIV>
<SCRIPT>
function sc1(){
 document.getElementById("Javascript.Div1").style.top=document.body.scrollTop+(document.body.clientHeight-document.getElementById("Javascript.Div1").offsetHeight)/2
 document.getElementById("Javascript.Div1").style.left=document.body.scrollLeft+(document.body.clientWidth-document.getElementById("Javascript.Div1").offsetWidth)/2;
}
</SCRIPT>
<DIV class=div id=Javascript.Div2 style="WIDTH: 240px; HEIGHT: 90px"
align=center>左上...</DIV>
<SCRIPT>
function sc2(){
 document.getElementById("Javascript.Div2").style.top=document.body.scrollTop;//document.documentElement.scrollTop标准网页写法
 document.getElementById("Javascript.Div2").style.left=document.body.scrollLeft;
}
</SCRIPT>
<DIV class=div id=Javascript.Div3 style="WIDTH: 240px; HEIGHT: 90px"
align=center>左下...</DIV>
<SCRIPT>
function sc3(){
 document.getElementById("Javascript.Div3").style.top=document.body.scrollTop+document.body.clientHeight-document.getElementById("Javascript.Div3").offsetHeight;
 document.getElementById("Javascript.Div3").style.left=document.body.scrollLeft;
}
</SCRIPT>
<DIV class=div id=Javascript.Div4 style="WIDTH: 240px; HEIGHT: 90px"
align=center>右上...</DIV>
<SCRIPT>
function sc4(){
 document.getElementById("Javascript.Div4").style.top=document.body.scrollTop;
 document.getElementById("Javascript.Div4").style.left=document.body.scrollLeft+document.body.clientWidth-document.getElementById("Javascript.Div4").offsetWidth;
}
</SCRIPT>
<DIV class=div id=Javascript.Div5 style="WIDTH: 240px; HEIGHT: 90px"
align=center>右下...</DIV>
<SCRIPT>
function sc5(){
 document.getElementById("Javascript.Div5").style.top=document.body.scrollTop+document.body.clientHeight-document.getElementById("Javascript.Div5").offsetHeight;
 document.getElementById("Javascript.Div5").style.left=document.body.scrollLeft+document.body.clientWidth-document.getElementById("Javascript.Div5").offsetWidth;;
}
</SCRIPT>
<SCRIPT language=JavaScript>

</SCRIPT>
<DIV
style="LEFT: 0px; WIDTH: 10000px; POSITION: absolute; TOP: 0px; HEIGHT: 4000px"></DIV>
</BODY>
</HTML>

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