HTML/CSS/Box Model/margin top
Содержание
A paragraph with top and bottom margins set at 5%
<!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>
<title>Box Model Demo</title>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1" /> <style type="text/css">
body {
background-color: #808;
}
p {
background: #c0c;
margin-left: 20%;
padding-left: 10%;
margin-top: 5%;
margin-bottom: 5%;
}
</style> </head>
<body>
<p>A paragraph with top and bottom margins set at 5%</p>
</body>
</html>
Independently set margin-left, margin-right, margin-top, and margin-bottom.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style type="text/css">
.container{
position: relative;
width: 800px;
height: 800px;
background: pink;
}
* .box {
float: right;
overflow: auto;
visibility: visible;
width: auto;
height: 100px;
margin: 10px;
padding: 10px;
background: red;
}
* .small {
position: absolute;
margin-left: 200px;
background: yellow;
}
</style>
</head>
<body>
<div class="container">
<div class="small">this is a test. <BR/>this is a test. this is a test. this is a test. </div>
<div class="box">this is a test</div>
</div>
</body>
</html>
Layered with negative top margin
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style type="text/css">
* .static {
position: static;
background: red;
}
* .overlap {
margin-top: -22px;
background: yellow;
}
* .relative {
position: relative;
background: pink;
}
* .fixed {
position: fixed;
margin-top: -16px;
background: gold;
}
* .absolute {
position: absolute;
top: 65px;
background: blue;
}
</style>
</head>
<body>
<div>Layered
<p class="static">Static Overlapping Block</p>
<p class="static overlap">Static Overlapping Block</p>
<table class="static overlap"><tr><td>Overlapping Table</td></tr></table>
</div>
</body>
</html>
margin-top: .33em
<!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=ISO-8859-1" />
<title></title>
<style type="text/css">
label {
margin-top: .33em;
display: block;
}
</style>
</head>
<body>
<div id="container">
<div id="header">
<h1>My Amazing Web Site </h1>
</div>
<div id="wrapper">
<div id="content">
<h2>Contact Form</h2>
<p>This is a test.</p>
<p>Please fill out our form below in order to contact me. </p>
<form id="form1" name="form1" method="post" action="/">
<label for="fmtitle" accesskey="i">T<span class="akey">i</span>tle</label>
<select name="fmtitle" id="fmtitle">
<option value="ms">Ms.</option>
<option value="mrs">Mrs.</option>
<option value="miss">Miss</option>
<option value="mr">Mr.</option>
</select>
<label for="fmname" accesskey="n"><span class="akey">N</span>ame</label>
<input type="text" name="fmname" id="fmname" />
<label for="fmemail" accesskey="e"><span class="akey">E</span>mail</label>
<input type="text" name="fmemail" id="fmemail" />
<label for="fmstate" accesskey="a">St<span class="akey">a</span>te/Province</label>
<input type="text" name="fmstate" id="fmstate" />
<label for="fmstate" accesskey="y">Countr<span class="akey">y</span></label>
<input type="text" name="fmcountry" id="fmcountry" />
<label for="fmmsg"><span class="akey">M</span>essage</label>
<textarea name="fmmsg" accesskey="m" id="fmmsg" rows="5" cols="14"></textarea>
<input type="submit" name="submit" value="send »" class="submit" />
</form>
<p>Note: Due to our busy schedules, we cannot answer every message.</p>
</div>
</div>
<div id="extra">
<h2>header</h2>
<p>This is a text</p>
</div>
<div id="footer">
<p>All rights reserved except where noted.</p>
</div>
</div>
</body>
</html>
Set image margin top and left to negative value
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style type="text/css">
img {
position: absolute;
top: 50%;
left: 50%;
margin-top: -96px;
margin-left: -138px;
height: 192px;
width: 256px;
}
</style>
</head>
<body>
<img src="w.jpg" width="256" height="192" alt="Photo">
</body>
</html>
Top Aligned Absolute block
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css" title="text/css">
* .grandContainer {
position: relative;
height: 300px;
width: 700px;
border: 2px solid black;
background: red;
}
* .parent {
margin: 10px;
padding: 10px;
padding-top: 0;
border: 1px solid black;
background: purple;
}
* .ex {
padding: 5px;
border: 5px solid black;
width: 120px;
text-align: center;
position: relative;
}
* .ex span {
left: 0;
width: 130px;
height: auto;
}
#myAbsolute {
height: 100px;
top: 0;
margin-top: 0;
bottom: auto;
margin-bottom: auto;
position: absolute;
margin-left: 200px;
background-color: gold;
}
</style>
</head>
<body>
<div class="grandContainer">Positioned Grandparent
<div class="parent">Non-positioned Parent
<span id="myAbsolute" class="ex"><span>Sized Absolute</span></span>
</div>
</div>
</body>
</html>
Top offset Static Block
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css" title="text/css">
* .grandContainer {
position: relative;
height: 300px;
width: 700px;
border: 2px solid black;
background: red;
}
* .parent {
margin: 10px;
padding: 10px;
padding-top: 0;
border: 1px solid black;
background: purple;
}
* .innerClass {
padding: 5px;
border: 5px solid black;
width: 120px;
text-align: center;
position: relative;
}
* .innerClass span {
left: 0;
width: 130px;
height: auto;
}
#myStyle {
height: auto;
margin-top: -70px;
margin-bottom: 0;
position: static;
background-color: yellow;
background-color: gold;
}
</style>
</head>
<body>
<div class="grandContainer">Positioned Grandparent
<div class="parent">Non-positioned Parent
<div id="myStyle" class="innerClass"><span>this is a test. this is a test. </span></div>
</div>
</div>
</body>
</html>