電子商務(wù)主要干嘛seo怎么發(fā)布外鏈
css3有哪些新特性?包含哪些模塊?以下是整理的21個css3新特性:
1.新增選擇器
p:nth-child(n){color: rgba(255, 0, 0, 0.75)}
2.新增偽元素
::before 和 ::after
3.彈性盒模型
display: flex;
4.多列布局
column-count: 5;
5.媒體查詢
@media (max-width: 480px) {.box: {column-count: 1;}}
6.個性化字體
@font-face{font-family: BorderWeb; src:url(BORDERW0.eot);}
7.顏色透明度
color: rgba(255, 0, 0, 0.75);
8.圓角
border-radius: 5px;
9.漸變
background:linear-gradient(red, green, blue);
10.陰影
box-shadow:3px 3px 3px rgba(0, 64, 128, 0.3);
11.倒影
box-reflect: below 2px;
12.文字裝飾
text-stroke-color: red;
13.文字溢出
text-overflow:ellipsis;
14.背景效果
background-size: 100px 100px;
15.邊框效果
border-image:url(bt_blue.png) 0 10;
16.旋轉(zhuǎn)
transform: rotate(20deg);
17.傾斜
transform: skew(150deg, -10deg);
18.位移
transform: translate(20px, 20px);
19.縮放
transform: scale(.5);
20.平滑過渡
transition: all .3s ease-in .1s;
21.動畫
@keyframes anim-1 {50% {border-radius: 50%;}} animation: anim-1 1s;