css中盒子下移出现问题,无法下移
*{
margin: 0px;
padding: 0px;
list-style-type: none;
}
.nav{
position: 20px 30px;
margin-bottom: 10px;
padding-left: 15px;
line-height: 43px;
font-size: 18px;
}
.nav h1 a{
margin-left: 10px;
color:red ;
text-decoration: none;
}
.nav h1 li a{
text-decoration: none;
color:black;
font-family:\9ED1\4F53 ;
font-size: 20px;
width: 460px;
position: relative;
line-height: 30px;
margin-left: 10px;
}