权重计算方式与演示

/ 权重规则/
/ id class tag /

h1 {
color:blue;
}

hi.title {
color: red;
}

h1#active.title{
color: red;
}

header.top h1.title div#active {
color: red;
}

.col-md-6 {
height: 2em;
border: thin solid;
color: blue;

}

.col-md-6.red {
color: red;
}