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法則二:同輩元素同為動態定位時,且有z-index設定時,z-index值大者居上。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="author" content="Chomo" />
<link rel="start" href="http://www.14px.com/" title="Home" />
<title>法則二:同輩元素同為動態定位時,且有z-index設定時,z-index值大者居上。</title>
</head>
<style type="text/css">
div { font:12px/1.5 arial;}
div strong { color:#fff; background:#036; display:inline-block;}
h3 strong { color:#f00;}
/*--- 定義方塊外形 ---*/
.div1,
.div2 {
height:70px;
width:150px;
background:#cff;
border:1px solid #036;
}
.grandDiv1,
.grandDiv2 {
padding:10px;
border:1px solid #060;
width:174px;
background:#cf9;
}
.parentDiv1,
.parentDiv2 {
padding:10px;
border:1px solid #f06;
width:152px;
background:#fcf;
}
/*--- 定義方塊位移位置、文字位置 ---*/
.grandDiv2 {
margin-top:-50px;
margin-left:95px;
}
.parentDiv2 {
margin-top:-40px;
margin-left:85px;
}
.div2 {
margin-top:-20px;
margin-left:75px;
padding-top:30px;
height:40px;
}
.grandDiv2 .parentDiv2,
.grandDiv2 .div2,
.parentDiv2 .div2 { margin:0;}
</style>
<body>
<h3>法則二:同輩元素同為動態定位時,且有z-index設定時,z-index值大者居上。</h3>
<div class="div1" style="position:relative; z-index:2;">.div1{position.relative;z-index:2}</div>
<div class="div2" style="position:relative; z-index:1;">.div2{position.relative;z-index:1}</div>
</body>
</html>
法則三:同輩元素定位方式不同時,動態定位居上。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="author" content="Chomo" />
<link rel="start" href="http://www.14px.com/" title="Home" />
<title>法則三:同輩元素定位方式不同時,動態定位居上。</title>
</head>
<style type="text/css">
div { font:12px/1.5 arial;}
div strong { color:#fff; background:#036; display:inline-block;}
h3 strong { color:#f00;}
/*--- 定義方塊外形 ---*/
.div1,
.div2 {
height:70px;
width:150px;
background:#cff;
border:1px solid #036;
}
.grandDiv1,
.grandDiv2 {
padding:10px;
border:1px solid #060;
width:174px;
background:#cf9;
}
.parentDiv1,
.parentDiv2 {
padding:10px;
border:1px solid #f06;
width:152px;
background:#fcf;
}
/*--- 定義方塊位移位置、文字位置 ---*/
.grandDiv2 {
margin-top:-50px;
margin-left:95px;
}
.parentDiv2 {
margin-top:-40px;
margin-left:85px;
}
.div2 {
margin-top:-20px;
margin-left:75px;
padding-top:30px;
height:40px;
}
.grandDiv2 .parentDiv2,
.grandDiv2 .div2,
.parentDiv2 .div2 { margin:0;}
</style>
<body>
<h3>法則三:同輩元素定位方式不同時,動態定位居上。</h3>
<div class="div1" style="position:relative;">.div1{position.relative}</div>
<div class="div2">.div2{position.static}</div>
<div class="div1">.div1{position.static}</div>
<div class="div2" style="position:absolute;">.div2{position:absolute}</div>
</body>
</html>
法則四:非同輩元素,任意一者及其祖元素不具備動態布局時,html靠後者居上。
代碼:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="author" content="Chomo" />
<link rel="start" href="http://www.14px.com/" title="Home" />
<title>法則四:非同輩元素,任意一者及其祖元素不具備動態布局時,html靠後者居上。</title>
</head>
<style type="text/css">
div { font:12px/1.5 arial;}
div strong { color:#fff; background:#036; display:inline-block;}
h3 strong { color:#f00;}
/*--- 定義方塊外形 ---*/
.div1,
.div2 {
height:70px;
width:150px;
background:#cff;
border:1px solid #036;
}
.grandDiv1,
.grandDiv2 {
padding:10px;
border:1px solid #060;
width:174px;
background:#cf9;
}
.parentDiv1,
.parentDiv2 {
padding:10px;
border:1px solid #f06;
width:152px;
background:#fcf;
}
/*--- 定義方塊位移位置、文字位置 ---*/
.grandDiv2 {
margin-top:-50px;
margin-left:95px;
}
.parentDiv2 {
margin-top:-40px;
margin-left:85px;
}
.div2 {
margin-top:-20px;
margin-left:75px;
padding-top:30px;
height:40px;
}
.grandDiv2 .parentDiv2,
.grandDiv2 .div2,
.parentDiv2 .div2 { margin:0;}
</style>
<body>
<h3>法則四:非同輩元素,任意一者及其祖元素不具備動態布局時,html靠後者居上。</h3>
<div class="parentDiv1">
.parentDiv1{position:staitc}
<div class="div1">.div1{position:staitc}</div>
</div>
<div class="parentDiv2">
<div class="div2">.div2{position:staitc}</div>
.parentDiv2{position:staitc}
</div>
<div class="grandDiv1">
.grandDiv1{position:staitc}
<div class="parentDiv1">
.parentDiv1{position:staitc}
<div class="div1">.div1{position:staitc}</div>
</div>
</div>
<div class="grandDiv2">
<div class="parentDiv2">
<div class="div2">.div2{position:staitc}</div>
.parentDiv2{position:staitc;}
</div>
.grandDiv2{position:static;}
</div>
</body>
</html>