- css is a cascading style sheet
- Selector: The machine that chooses who to put on makeup
- Selector classification:
(写在<head>里!!!和<body>都可以)
1) Tag selector
<style>
标签名{
属性:属性值;
.......
}
</style>
2) Class selector (class selector) class name can be repeated
<style>
.class名{
属性:属性值;
.......
}
</style>
3) id selector (id name is unique )
<style>
#id名{
属性:属性值;
.......
}
</style>
4) Selector group
<style>
标签名,#id名,.class名....{
属性:属性值;
.......
}
</style>
5) Including selector
<style>
...祖师爷 爷爷 爸爸{
属性:属性值;
.......
}
</style>
6) Pseudo-class selector
链接的四大状态:
未点击状态
a:link{
属性:属性值;
}
悬浮状态
a:hover{
属性:属性值;
}
点击未释放(激活状态)
a:active{
属性:属性值;
}
点击完成
a:visited{
属性:属性值;
}
7) Attribute selector
<style>
标签(#id名或者.class名)[属性名]{
属性:属性值;
.......
}
</style>