Web基础——CSS常用标签（3）
楮自珍
子层在外层中移动
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#wai {
height: 400px;
width: 400px;
background: url(img/img/aa.png);
background-size: 100% 100%;
/* padding-top: 100px;
box-sizing: border-box; */
/* 溢出层隐藏 */
overflow: hidden;
transition: all 0.5s;
}
a {
color: white;
text-decoration: none;
}
#nei {
font-size: 20px;
height: 50px;
width: 400px;
background-color: rgba(0, 0, 0, 0.2);
margin-top: 400px;
transition: all 0.5s;
}
#wai:hover {
background-size: 105% 105%;
transition: all 0.5s;
}
#wai:hover>#nei {
margin-top: 350px;
transition: all 0.5s;
}
</style>
</head>
<body>
<div id="wai">
<div id="nei">
<a href="#">点击下载查看更多高清大图</a>
</div>
</div>
</body>
</html>
自定义动画（1）
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#d1{
height: 400px;
width: 400px;
background-color: red;
/* 开启自定义动画 */
animation-name: mydh;
animation-duration: 3s;
animation-delay: 0s;
animation-iteration-count:infinite;
animation-timing-function:linear;
/* backwards 动画执行完停留到第一帧
forwards 动画执行完停留到最后一帧
*/
animation-fill-mode:forwards;
animation-direction:alternate;
/* 动画的暂停开始 */
animation-play-state:running;
}
@keyframes mydh{
/* 起始状态 */
from{
height: 400px;
width: 400px;
background-color: red;
}
/* 最终的状态 */
to{
height: 400px;
width: 400px;
background-color:yellow;
margin-left: 600px;
}
}
</style>
</head>
<body>
<div id="d1">
</div>
</body>
</html>
自定义动画（2）
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
#d1{
height: 400px;
width: 400px;
background-color: red;
/* 开启自定义动画 */
animation: mydh 2s 1s infinite;
}
@keyframes mydh{
/* 起始状态 */
from{
height: 400px;
width: 400px;
background-color: red;
}
/* 最终的状态 */
to{
height: 400px;
width: 400px;
background-color:yellow;
border-radius: 200px;
}
}
</style>
</head>
<body>
<div id="d1">
</div>
</body>
</html>
自定义动画详细写法
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
padding: 0;
margin: 0;
}
#wai {
position: absolute;
height: 300px;
width: 180px;
background-image: url(img/girl2.jpg);
background-size: 100% 100%;
animation: mydh 5s 0s infinite linear;
}
#wai:hover{
/* 鼠标移动上动画暂停 */
animation-play-state: paused;
}
#nei {
width: 100%;
height: 30px;
background-color: rgba(0, 0, 0, 0.2);
font-size: 18px;
color: white;
text-align: right;
}
a{
color: white;
text-decoration: none;
}
@keyframes mydh {
10% {
background-image: url(img/girl1.jpg);
top: 0;
left: 800px
}
30% {
background-image: url(img/girl3.jpg);
top: 400px;
left: 800px
}
50% {
background-image: url(img/girl4.jpg);
top: 300px;
left: 0px
}
70% {
background-image: url(img/girl5.jpg);
top: 10px;
left:500px
}
100% {
background-image: url(img/girl1.jpg);
top: 100px;
left:600px
}
}
</style>
</head>
<body>
<div id="wai">
<div id="nei">
<a href="#" onclick="guanbi()">X关闭</a>
</div>
</div>
</body>
<script type="text/javascript">
function guanbi(){
document.getElementById("wai").style.display="none";
}
</script>
</html>
流式布局
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
padding: 0;
margin: 0;
}
#top {
width: 100%;
height: 60px;
background-color: gray;
/* 最大的伸缩宽度 */
max-width:80%;
/* 最小的伸缩宽度 */
min-width:50%;
/* 自动居中 */
margin: 0px auto;
}
ul {
list-style: none;
}
ul li {
float: left;
height: 60px;
text-align: center;
line-height: 60px;
}
/* 第一个子li */
ul li:nth-child(1) {
/* 宽度使用百分比，不要写死为像素 */
width: 8%;
background-color: dimgray;
}
ul li:nth-child(2) {
width: 10%;
background-color: bisque;
}
ul li:nth-child(3) {
width: 57%;
background: yellowgreen;
}
ul li:nth-child(4) {
/* 宽度使用百分比，不要写死为像素 */
width: 25%;
background-color: red;
}
/* img 属于行内块元素，你要上下居中 */
#myimg {
height: 30px;
width: 30px;
/* 行内块元素，你要上下居中*/
vertical-align: middle;
}
#logo{
height: 50px;
width: 5ss0px;
/* 行内块元素，你要上下居中*/
vertical-align: middle;
}
</style>
</head>
<body>
<!-- 为了更好的适配屏幕 宽度，不要写死为像素，而是才有百分比 -->
<div id="top">
<ul>
<li><img src="img/x.png" id="myimg"></li>
<li><img src="img/jd.png" id="logo" ></li>
<li>打开京东APP购物实惠又轻松</li>
<li>下载APP</li>
</ul>
</div>
</body>
</html>
Emmet语法
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title></title>
</head>
<body>
<!-- div*4 生成4个div 注意：按 table键补全 -->
<div></div>
<div></div>
<div></div>
<div></div>
<!-- h1 按table键 补全这个标签-->
<h1></h1>
<!-- ul>li*5 父子关系-->
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
<!-- 并列关系 div+h1*2 -->
<div></div>
<h1></h1>
<h1></h1>
<!-- div+ul>li*5 -->
<div></div>
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
<!-- div#d1 添加id属性 -->
<div id="d1"></div>
<!--div.mydiv 添加class属性 -->
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<div class="mydiv"></div>
<!--
id自动编号 $
ul>li#item$*5
-->
<ul>
<li id="item1"></li>
<li id="item2"></li>
<li id="item3"></li>
<li id="item4"></li>
<li id="item5"></li>
</ul>
<!-- div#d$*10 -->
<div id="d1"></div>
<div id="d2"></div>
<div id="d3"></div>
<div id="d4"></div>
<div id="d5"></div>
<div id="d6"></div>
<div id="d7"></div>
<div id="d8"></div>
<div id="d9"></div>
<div id="d10"></div>
<!-- div+div>p>span+em^bq -->
<div></div>
<div>
<p>
<span></span>
<em></em>
</p>
<blockquote></blockquote>
</div>
<!-- ^ 上一级元素 -->
<!-- div+div>p>em^h1 -->
<div></div>
<div>
<p>
<em></em>
</p>
<h1></h1>
</div>
<!-- div>div>h1*2^h2 -->
<div>
<div>
<h1></h1>
<h1></h1>
</div>
<h2></h2>
</div>
<!-- div>(header>ul>li*2>a)+footer>p -->
<div>
<header>
<ul>
<li><a href=""></a></li>
<li><a href=""></a></li>
</ul>
</header>
<footer>
<p></p>
</footer>
</div>
<!-- (div>dl>(dt+dd)*3)+footer>p -->
<div>
<dl>
<dt></dt>
<dd></dd>
<dt></dt>
<dd></dd>
<dt></dt>
<dd></dd>
</dl>
</div>
<footer>
<p></p>
</footer>
<!-- h1[align] -->
<h1 align=""></h1>
<!-- h1[align=center] -->
<h2 align="center"></h2>
<!-- a[href=http://www.baidu]{进入百度} -->
<a href="http://www.baidu">进入百度</a>
<!--
大括号放的标签之间的文本内容
div{这是标签之间的内容} -->
<div>这是标签之间的内容</div>
<div>asfasfasfa</div>
<div>asfasfasfa</div>
<div>asfasfasfa</div>
<div>asfasfasfa</div>
<div>asfasfasfa</div>
<!-- $ 相当于要一个遍历
div{啊沙发沙发沙发$}*10
-->
<div>阿斯顿发射点的发1</div>
<div>阿斯顿发射点的发2</div>
<div>阿斯顿发射点的发3</div>
<div>阿斯顿发射点的发4</div>
<div>阿斯顿发射点的发5</div>
<div>阿斯顿发射点的发6</div>
<div>阿斯顿发射点的发7</div>
<div>阿斯顿发射点的发8</div>
<div>阿斯顿发射点的发9</div>
<div>阿斯顿发射点的发10</div>
<!-- ul>li.item$@-*5
@- 他的意思就是降序 -->
<li class="item5"></li>
<li class="item4"></li>
<li class="item3"></li>
<li class="item2"></li>
<li class="item1"></li>
</ul>
<!-- ul>li.item$@3*5
@3 编号从3开始
-->
<ul>
<li class="item3"></li>
<li class="item4"></li>
<li class="item5"></li>
<li class="item6"></li>
<li class="item7"></li>
</ul>
<!-- div{asdfasdfasdfasdf$@3}*10 -->
<div>asdfasdfasdfasdf3</div>
<div>asdfasdfasdfasdf4</div>
<div>asdfasdfasdfasdf5</div>
<div>asdfasdfasdfasdf6</div>
<div>asdfasdfasdfasdf7</div>
<div>asdfasdfasdfasdf8</div>
<div>asdfasdfasdfasdf9</div>
<div>asdfasdfasdfasdf10</div>
<div>asdfasdfasdfasdf11</div>
<div>asdfasdfasdfasdf12</div>
<!-- div#d99.mydiv -->
<div id="d99" class="mydiv"></div>
</body>
</html>
弹性盒子布局（1）
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
/* 去掉所有元素的预留内外间距 */
margin-top: 0px;
}
#box {
height: 600px;
width:100%;
border: 1px black solid;
/* 把外层设置为弹性盒子 */
display: flex;
/*
flex-direction：设置弹性盒子里面的子层的排列方向
row:横向左对齐排列
row-reverse 横向反转
column 纵向排列
column-reverse 纵向反转
*/
flex-direction:row;
/* 弹性盒子里面的子层对齐方式
center居中
flex-start 左对齐
flex-end 右对齐
space-between 两端顶着边，中间均分空白部分
space-around 两端留一些空白，中间均分空白
*/
justify-content:space-around ;
/* 纵向对齐方式
center 纵向居中
flex-start 纵向顶着上边
flex-end 纵向顶着下边
stretch:拉伸子层，填满父层的高度，注意子层不需要设置高度
*/
align-items:center;
}
.son {
height: 100px;
width: 100px;
border: 1px black solid;
/* margin: auto auto; */
/* margin-left: 20px; */
}
</style>
</head>
<body>
<!-- 流式布局： float:left 浮动 + 宽度使用百分比来设置
弹性盒子布局：不需要浮动
-->
<!--
style="order:6" 调整弹性盒子中，子层的顺序
-->
<div id="box">
<div class="son" style="order:6">1</div>
<div class="son" style="order:1">2</div>
<div class="son" style="order:2">3</div>
<div class="son" style="order:5">4</div>
<div class="son" style="order:6">5</div>
<div class="son" style="order:4">6</div>
</div>
</body>
</html>
弹性盒子布局（2）
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
/* 去掉所有元素的预留内外间距 */
margin-top: 0px;
}
#box {
height: 600px;
width: 100%;
border: 1px black solid;
/* 把外层设置为弹性盒子 */
display: flex;
flex-direction: row;
justify-content: space-around;
align-items:flex-start;
/*
当所有子层的宽度或高度超过了盒子的宽度和高度，要不要换行
nowrap 不换行就会挤压子层，默认值
wrap 自动换行
*/
flex-wrap:nowrap;
}
.son {
height: 100px;
border: 1px black solid;
/* 子层按比例分宽度 */
/* flex-grow: 1; */
}
#box>div:nth-child(1){
flex-grow: 1;
}
#box>div:nth-child(2){
flex-grow: 2;
}
#box>div:nth-child(3){
flex-grow: 2;
}
#box>div:nth-child(4){
flex-grow: 2;
}
#box>div:nth-child(5){
flex-grow: 3;
}
</style>
</head>
<body>
<div id="box">
<div class="son">1</div>
<div class="son">2</div>
<div class="son">3</div>
<div class="son">4</div>
<div class="son">5</div>
</div>
</body>
</html>
弹性盒子布局（3）
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
/* 去掉所有元素的预留内外间距 */
margin-top: 0px;
}
#box {
height: 600px;
width: 100%;
border: 1px black solid;
/* 把外层设置为弹性盒子 */
display: flex;
flex-direction: row;
justify-content: space-around;
align-items: center;
/*
当所有子层的宽度或高度超过了盒子的宽度和高度，要不要换行
nowrap 不换行就会挤压子层，默认值
wrap 自动换行
*/
flex-wrap:wrap;
}
.son {
height: 100px;
width: 100px;
border: 1px black solid;
}
</style>
</head>
<body>
<div id="box">
<div class="son">1</div>
<div class="son">2</div>
<div class="son">3</div>
<div class="son">4</div>
<div class="son">5</div>
<div class="son">6</div>
<div class="son">1</div>
<div class="son">2</div>
<div class="son">3</div>
<div class="son">4</div>
<div class="son">5</div>
<div class="son">6</div>
<div class="son">1</div>
<div class="son">2</div>
<div class="son">3</div>
<div class="son">4</div>
<div class="son">5</div>
<div class="son">6</div>
<div class="son">1</div>
<div class="son">2</div>
<div class="son">3</div>
<div class="son">4</div>
<div class="son">5</div>
<div class="son">6</div>
<div class="son">1</div>
<div class="son">2</div>
<div class="son">3</div>
<div class="son">4</div>
<div class="son">5</div>
<div class="son">6</div>
</div>
</body>
</html>
弹性盒子布局页面
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
* {
margin: 0;
padding: 0;
}
#top {
height: 100px;
width: 100%;
background-color: beige;
display: flex;
justify-content: space-between;
align-items: center;
}
#content{
height: 700px;
width: 100%;
background-color:gainsboro;
display: flex;
align-items:stretch;
}
#d1{
flex-grow: 3;
background-color: aquamarine;
}
#d2{
flex-grow: 7;
background-color: antiquewhite;
}
#dibu {
height: 200px;
width: 100%;
background-color:rgba(0,0,255,0.2);
display: flex;
justify-content: center;
align-items: flex-end;
}
#xiaobox{
margin-right: 20px;
display: flex;
align-items: center;
}
</style>
</head>
<body>
<div id="top">
<h1 style="margin-left: 10px;">客户管理系统</h1>
<div id="xiaobox">
<div id="">
<img src="img/jd.png" >
</div>
<div id="" style="margin-left: 10px;">
西安文理
</div>
</div>
</div>
<div id="content">
<div class="son" id="d1">
左
</div>
<div class="son" id="d2">
右
</div>
</div>
<div id="dibu">
<div id="" style="margin-bottom: 10px;">
地址：西安市太白南路168号
<br>
电话：11111111111
<br>
版权所有：西安文理
</div>
</div>
</body>
</html>
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