分两种情况:
}
.two{
background-color: #3dfeca;
}
.content1 .one,.content2 .one{
height:50px;
}
.two{
background-color: #3dfeca;
}
.content1 .one,.content2 .one{
height:50px;
}
一,后面的元素是块级元素---block
the folowing element is block;
second div idv idv div div div div div div div div