css begin

3 methods: 1, inline2, internal: 3, external:

1,inline:
<h1 style="color: red;">hel</h1>
2,internal:
<style>
        h1 {
            color:blue;
        }
    
</style>
3,external:
<link rel="stylesheet" type="text/css" href="css/style.css">

 

 background-color

color:

font: .........= below

font-family = xxxx = font

font-size = 16px = Size

font-weight = 100, bond, normal = thickness

light-height = 1.5em / 1.3px = line height

class

.className {// later as