正文
css 拾遗
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1， 实现尖角
<style>
.up{
border-top: 30px solid red;
border-right:30px solid gold;
border-bottom:30px solid teal;
border-left:30px solid royalblue;
display: inline-block;
}
</style> <div class="up"></div>
实现1
效果图：
<style>
.down{
border-top: 30px solid teal;
border-right: 30px solid #e20052;
/*border-bottom: 30px solid transparent;*/
border-left: 30px solid rosybrown;
display:inline-block;
} </style>
<div class="down"></div>
实现2
效果图：
内联 inline-block 是它独有的特性
.c1{
border: 30px solid transparent;
border-top: 30px solid royalblue;
display: inline-block;
margin-top:40px;
}
.c1:hover{
border: 30px solid transparent;
border-bottom: 30px solid royalblue;
margin-top: 0px;
} <div style=" height:100px;background-color: rosybrown">
<div class="c1"></div>
</div>
动态实例
鼠标临幸前
鼠标临幸后
将鼠标指在该位置会出现动态效果
<style>
.cc{
border-top:10px solid red;
border-right: 10px solid bisque;
border-left:10px solid cadetblue;
display: inline-block;
}
.cc:hover{
border:0;
border-right: 10px solid salmon;
border-bottom: 10px solid red;
border-left: 10px solid slateblue;
}
</style>
<body>
<div class="cc"></div> </body>
动态实例2
效果图： 鼠标临幸前
鼠标临幸后
2，伪类 hover：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.ele{
background-color: #ff0033;
border: 2px solid white;
}
.ele:hover{
border: 2px solid black;
}
.ele:hover .ele-item{
color: rosybrown;
}
</style>
</head>
<body>
<div class="ele">
<div>123</div>
<div class ="ele-item">123</div>
</div> </body>
</html>
hover 1
效果图:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.touch{
width:405px;
height: 266px;
overflow: hidden;
position: relative;
}
.touch .content{
position: absolute;
top:0;
left:0;
right: 0;
bottom: 0;
/*background-color: #030911;*/
/*opacity: 0.6;*/ 透明度
background: rgba(0,0,0,0.6); 颜色 加透明
color: white;
text-align: center;
visibility: hidden; 隐藏
}
.touch:hover .content{
visibility: visible; 可见
}
.touch.content .c1{
font-size: 32px;
padding: 30px 0;
}
</style>
</head>
<body> <div class="touch">
<div><img src="27.jpg"></div>
<div class="content">
<div class="c1">价格 RMB </div>
<div class="c2">500--1000(人民币)</div>
</div>
</div> </body>
</html>
hover 2
效果图 鼠标临幸前
鼠标临幸后
3.position 定位 ：
position：relative 相对的位置
position：absolute 根据最近的 relative 进行定位
position ：fixed 进行绝对定位， 根据窗口来定位，滑动滚轮，位置也不会改变
<body>
<div style="height:1000px;background-color: rebeccapurple">
<div style="position: relative;background-color:white;width: 500px;height: 150px;margin: 0 auto">
<div style="position: absolute;left:0;bottom:0;width: 40px;height: 40px;background-color:palevioletred">
</div>
</div>
</div>
<div style="position:fixed;right:10px;bottom: 10px;width: 40px;height: 40px;background-color: violet"></div>
</body>
</html>
效果图： 滚轮在顶端时
滚轮在下面时
4. 加减按钮：
cursor: pointer; 鼠标指针 为小手
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title> <style>
.left{
float: left;
}
.wrap{
height: 22px;
width: 150px;
border: 1px solid #ddd;
}
.wrap .minus{
height: 22px;
width: 22px;
line-height: 22px;
cursor: pointer;
text-align: center;
}
.wrap .plus{
height: 22px;
width: 22px;
line-height: 22px;
cursor: pointer;
text-align: center;
}
.wrap .count input{
padding: 0;
border: 0;
width:104px;
height: 22px;
border-left: 1px solid #ddd;
border-right: 1px solid #ddd;
}
</style>
</head>
<body>
<div class="wrap">
<div class="minus left" onclick="Minus();">-</div>
<div class="count left">
<input id="count" type="text" value="1" /></div>
<div class="plus left" onclick="Plus();">+</div>
</div>
</body>
</html>
5。 输入框尾端的图标：
padding-right:30px;*达到输入到该位置处就不增长的效果*/
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.user{
position: relative;
width: 250px;
}
.user input{
height: 30px;
width: 170px;
padding-right:30px;
}
.user .ren{
position: absolute;
top:8px;
left:180px
}
</style>
</head>
<body>
<div class="user">
<input type="text">
<span class="ren">R</span>
</div>
</body>
</html>
输入前
输入后：
5.后台布局：
overflow: auto;如果内容超过自动长度，就会生成一个滚动条.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body{
margin: 0;
}
.pg-header{
height: 50px;
background: rebeccapurple;
}
.pg-body .body-menu{
position: absolute;
width: 180px;
background-color: #666666;
left: 0;
top: 50px;
bottom: 0;
}
.pg-body .body-content{
position: absolute;
top:48px;
left: 182px;
right: 0;
bottom: 0;
background-color: #8C0044;
overflow: auto;
}
</style>
</head>
<body>
<div class="pg-header"> </div>
<div class="pg-body">
<div class="body-menu">
<ul>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
<li>111</li>
</ul>
</div>
<div class="body-content">
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
<h1>zzz1</h1><h1>zzz1</h1><h1>zzz1</h1>
</div>
</div> </body>
</html>
7.模态对话框：
分为3层 底层 遮罩层 对话层
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body{
margin: 0;
}
.top{
height: 2000px;
background-color: #000fff;
}
.model{
position: fixed;
top:0;
bottom: 0;
left:0;
right: 0;
background:rgba(0,0,0,.5);
z-index: 2;
}
.countent{
height: 300px;
width: 400px;
background-color: white;
position: fixed;
top: 50%;
left:50%;
z-index: 3;
margin-top: -200px;
margin-left:-200px;
} </style>
</head>
<body>
<div class="top">
<h1>ss1</h1><h1>ss1</h1><h1>ss1</h1><h1>ss1</h1><h1>ss1</h1>
</div>
<div class="model"></div>
<div class="countent"></div>
</body>
</html>
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