宽高bug
【1】IE6-浏览器下子元素能撑开父级设置好的宽高
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
height: 300px;
width: 300px;
background-color: #ccc;
border: 10px solid black;
}
.in{
height: 400px;
width: 100px;
background-color: red;
margin: 10px;
padding: 10px;
border: 1px solid black;
}
</style>
</head>
<body>
<div class="box" id="box">
<ul class="list" id="list">
<li class="in" id="test">test</li>
</ul>
</div>
</body>
</html>
【2】IE6-浏览器下最小高度问题,设置(0-15px)高度小于等于15px的元素,在IE6下会被当作15px来处理
【解决】
[1]设置font-size为0,但最小高度为2px
[2]设置overflow:hidden,但最小高度为1px
[3]要想实现最小高度为0,只能是不设置高度
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
.box{
height: 0px;
background-color: #ccc;
}
</style>
</head>
<body>
<div class="box" id="box"></div>
</body>
</html>
边框bug
【1】IE6-浏览器下1px的点线边框,点线会变成虚线
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
.box{
height: 300px;
width: 300px;
background-color: #ccc;
border: 1px dotted black;
}
</style>
</head>
<body>
<div class="box" id="box"></div>
</body>
</html>
【2】标准下背景会延伸到边框区,而IE7-浏览器下背景只延伸到padding区
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
.box{
height: 300px;
width: 300px;
background-color:#ccc;
border: 10px dashed red;
}
</style>
</head>
<body>
<div class="box" id="box"></div>
</body>
</html>
【3】在IE10-浏览器下被<a>标签包含的<img>元素会产生边框
【解决】给图片设置{border: none}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
img{
height: 300px;
width: 300px;
background-color:#ccc;
}
</style>
</head>
<body>
<a href="#"><img src="#"></a>
</body>
</html>
盒模型bug
【1】IE7-浏览器下父级有边框,无法阻止子元素的上下margin值传递
【解决】触发父级的haslayout
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
border: 10px solid black;
background-color: red;
}
.in{
height: 100px;
width: 100px;
margin-top: 50px;
background-color: blue;
}
</style>
</head>
<body>
<ul class="list">
<li class="in"></li>
</ul>
</body>
</html>
【2】IE7-浏览器下不设置文档声明会导致怪异盒模型解析。在怪异盒模型下内容宽=width-2*padding-2*borderWidth
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
.box{
height: 100px;
width: 100px;
border: 40px solid black;
background-color: red;
}
</style>
</head>
<body>
<div class="box" id="box"></div>
</body>
</html>
【3】IE6-浏览器下使用margin负值,使元素移出父级,移出部分会被父级裁掉
【解决】给子级加相对定位relative
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
margin-left: 100px;
height: 300px;
width: 300px;
background-color: #ccc;
}
.in{
margin-left: -30px;
height: 100px;
width: 100px;
background-color: red;
}
</style>
</head>
<body>
<ul class="list">
<li class="in"></li>
</ul>
</body>
</html>
LIbug
【1】(li的4px空隙bug)IE7-浏览器下,li本身没浮动,但内容有浮动,li下边会多出4px的空隙
【解决】
[1]给li加浮动
[2]设置vertical-align
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
width: 200px;
background-color: lightgreen;
}
.in{
height: 100px;
background-color: lightblue;
}
</style>
</head>
<body>
<ul class="list">
<li class="in">
<span style="float: left">1231</span>
</li>
<li class="in">
<span style="float: left">1232</span>
</li>
</ul>
</body>
</html>
【2】(li下的4px间隙和最小高度共存的问题)IE7浏览器下,当li下的4px间隙问题和最小高度问题共存的时候,设置垂直对齐方式无效
【解决】给li加浮动
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
width: 200px;
background-color: lightgreen;
}
.in{
height: 12px;
background-color: lightblue;
overflow: hidden;
vertical-align: middle;
}
.span{
float: left;
}
</style>
</head>
<body>
<ul class="list">
<li class="in">
<span class="span">1231</span>
</li>
<li class="in">
<span class="span">1232</span>
</li>
</ul>
</body>
</html>
【3】(li的3px空隙bug)IE7-浏览器下li有高度或宽度或zoom:1,且仅包含内联元素,且内联元素被设置为display:block,li下会多出3px的垂直间距
【解决】触发li中子元素的haslayout
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
width: 200px;
background-color: lightgreen;
}
.in{
height: 100px;
background-color: lightblue;
}
.span{
display: block;
}
</style>
</head>
<body>
<ul class="list">
<li class="in">
<span class="span">1231</span>
</li>
<li class="in">
<span class="span">1232</span>
</li>
</ul>
</body>
</html>
浮动bug
【1】(3pxbug)在IE6-浏览器下浮动元素和非浮动元素相邻时,会出现3px像素的空隙
【解决】
[1]使用CSShack,给浮动元素设置相反方向的-3px的margin值,将非浮动元素的相应方向的margin设为0(加IE6前缀)
[2]去掉非浮动元素的margin值,加浮动。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
.box{
width: 100px;
height: 100px;
}
#box1{
float: left;
background-color: red;
_margin-right:-3px;
border-right: 1px solid green;
}
#box2{
margin-left: 100px;
_margin-left: 0;
border:1px solid black;
background-color: blue;
}
</style>
</head>
<body>
<div class="box" id="box1"></div><div class="box" id="box2"></div>
</body>
</html>
【2】IE6-下父元素浮动后,且子元素设置了高度,如果父元素不设置宽度,宽度会撑满整行
【解决】
[1]给浮动的父元素设置宽度
[2]给子元素设置宽度
[3]给子元素设置浮动
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
float: left;
background-color: green;
}
.in{
height: 100px;
background-color: yellow;
}
</style>
</head>
<body>
<ul class="list">
<li class="in">我是内容</li>
</ul>
</body>
</html>
【3】(浮动折行)在IE7-浏览器下,如果两个元素一个右浮动,一个不浮动。浮动元素会折到下一行
【解决】
[1]给不浮动的元素也加浮动
[2]在HTML中先放右浮动的元素
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
width: 500px;
background-color: lightgreen;
overflow: hidden;
}
.in{
width: 100px;
height: 100px;
}
.in1{
background-color: lightyellow;
}
.in2{
background-color: lightblue;
float: right;
}
</style>
</head>
<body>
<div class="list">
<span class="in in1">我是不浮动</span>
<span class="in in2">我是右浮动</span>
</div>
</body>
</html>
【4】(双边距bug)IE6-浏览器下块元素有浮动,且有横向的margin值。若仅有左margin,最左边的浮动的块元素的左margin会放大成两倍。若仅有右margin,最右边的浮动的块元素的右margin会放大成两倍。若左右都有,最左边的左margin和最右边的右margin会放大成两倍。
【解决】给块元素设置display:inline
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
float: left;
background-color: #ccc;
}
.in{
float:left;
width: 100px;
height: 100px;
}
.in1{
background-color: lightgreen;
margin-left: 50px;
}
.in2{
background-color: lightyellow;
}
.in3{
background-color: lightblue;
margin-right: 50px;
}
</style>
</head>
<body>
<ul class="list">
<li class="in in1"></li>
<li class="in in2"></li>
<li class="in in3"></li>
</ul>
</body>
</html>
【5】(margin-bottomBUG)在IE7-浏览器下父级宽度和每行元素的宽度之和相差超过3px时,或者有不满行的情况,最后一行的margin-bottom失效
【解决】尽量不要用margin-bottom,而用margin-top代替
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
width: 350px;
overflow: hidden;
background-color: #ccc;
}
.in{
float:left;
width: 100px;
height: 100px;
margin-bottom: 10px;
margin-right: 10px;
background-color: lightgreen;
}
</style>
</head>
<body>
<ul class="list">
<li class="in"></li>
<li class="in"></li>
<li class="in"></li>
<li class="in"></li>
<li class="in"></li>
</ul>
</body>
</html>
【6】(文字溢出bug)IE6-浏览器下两个浮动元素(浮动元素不能是li)一个左浮无宽度,另一个右浮动宽度与父级宽度相差不超过3px,浮动元素中间有注释或者内联元素,文字就被复制
【解决】
[1]将注释去掉
[2]将内联元素变成块元素
[3]内联元素及注释整个用<div>包起来
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
width: 200px;
}
.in1{
float:left;
}
.in2{
float:right;
width:198px;
}
</style>
</head>
<body>
<div class="list">
<div class="in1"></div>
<!-- 我是--><span></span><!-- 我是 --><!-- 我是 -->
<div class="in2">多出来的一头猪吗</div>
</div>
</body>
</html>
定位bug
【1】在IE7-浏览器下子元素有相对定位,父级的overflow无效
【解决】给父级也设置相对定位
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
background-color: lightgreen;
width: 200px;
height: 100px;
overflow: auto;
}
.in{
position: relative;
width: 100px;
height: 300px;
background-color: lightblue;
}
</style>
</head>
<body>
<ul class="list">
<li class="in"></li>
</ul>
</body>
</html>
【2】在IE6-浏览器下浮动元素和绝对定位元素是并列关系,且浮动元素设置margin-left和width的和正好等于父元素的宽度,这时绝对定位元素会消失
【解决】给定位元素外面包一个div
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
background-color: lightgreen;
width: 200px;
height: 100px;
}
.in1{
position: absolute;
top: 0;
left: 0;
width: 100px;
height: 100px;
background-color: lightblue;
}
.in2{
float: left;
margin-left: 100px;
display: inline;
width: 100px;
height: 100px;
background-color: pink;
}
</style>
</head>
<body>
<ul class="list">
<li class="in1">定位元素</li>
<li class="in2">浮动元素</li>
</ul>
</body>
</html>
【3】在IE6-浏览器下绝对定位元素的父级元素的宽度为奇数时,元素的right会有1px的偏差;高度为奇数时,元素的bottom会有1px的偏差
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
ul{
margin: 0;
padding: 0;
list-style: none;
}
.list{
position: relative;
background-color: black;
width: 199px;
height: 199px;
}
.in{
position: absolute;
right: 0;
bottom: 0;
width: 100px;
height: 100px;
background-color: lightblue;
}
</style>
</head>
<body>
<ul class="list">
<li class="in">定位元素</li>
</ul>
</body>
</html>
表单bug
【1】IE6-浏览器下label标签只支持for属性,不支持仅仅包含<input>的写法
【解决】使用for属性
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<label><input type="checkbox">label测试文字</label>
</body>
</html>
【2】(input空隙问题)当input元素被div包围时,IE6-浏览器下它们之间上下会各多出1px的空隙;而IE7、8浏览器下它们之间的上边会多出1px的空隙
【解决】给input加浮动
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
input{
margin: 0;
padding: 0;
border: none;
}
.box{
width: 202px;
height: 32px;
border: 1px solid black;
background-color: red;
}
.ipt{
width: 200px;
height: 30px;
border: 1px solid #ccc;
}
</style>
</head>
<body>
<div class="box">
<input class="ipt">
</div>
</body>
</html>
【3】IE6-浏览器下当input元素被div包围时,在已经给input设置浮动的情况下,设置border:none无法得到理想效果
【解决】
[1]设置border:0
[2]重置input的背景
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
input{
margin: 0;
padding: 0;
border: none;
}
.box{
width: 201px;
height: 31px;
border: 1px solid black;
background-color: red;
}
.ipt{
width: 200px;
height: 30px;
border: none;
float: left;
}
</style>
</head>
<body>
<div class="box">
<input class="ipt">
</div>
</body>
</html>
【4】IE7-浏览器下输入类型表单控件如<textarea>、<input>等输入文字时,背景图像会跟着文字一起滚动
【解决】把背景加给父级,并清掉自身背景
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
body{
margin: 0;
}
.test{
overflow: auto;
background: url(img/bg.jpg) no-repeat;
font-size: 50px;
line-height: 60px;
height: 200px;
width: 500px;
}
</style>
</head>
<body>
<textarea class="test"></textarea>
</body>
</html>
【5】IE6-浏览器中select控件无法被<div>覆盖,因为在IE6中select控件是处于最顶层的。
【解决】iframe比select优先级高,把iframe嵌套在<div>里面,并设置为不可见
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
input{
width: 100px;
height: 100px;
background-color: lightgreen;
}
.box{
width: 200px;
height: 200px;
position: absolute;
top: 20px;
left: 20px;
background-color: pink;
}
</style>
</head>
<body>
<select class="select">
<option>test1</option>
<option>test2</option>
<option>test3</option>
</select>
<div class="box" id="box"><iframe style="width:50px; height:50px;border: 0; position: absolute; opacity = 0; filter:alpha(opacity=0)"></iframe></div>
</body>
</html>