一个JAVA-WEB的格式

• {
  margin: 0;
  padding: 0;
  }

.clearfix:after {
content: “”;
display: block;
clear: both;
}

ul {
list-style: none;
}

#logo {
float: left;
}

#top_right {
float: right;
}

#top_right > ul {
margin-right: 20px;
}

#top_right li {
margin-top: 40px;
float: left;
font-size: 23px;
}

.menu {
width: 1920px;
background-color: #1c3f09;
float: left;
}

.menu li {
float: left;
text-align: center;
width: 7.1%;
font-size: 15px;
padding: 2px 0;
color: white;
}

.menu li:hover {
background-color: #ff635e;
}

.search {
float: right;
margin: 5px 30px 5px 0;
}

.search input {
float: left;
margin-right: 5px;
}

.search button {
float: left;
}

.content {
width: 1820px;
border: 2px black solid;
margin: 0 50px;
float: left;
}

.goods {
font-size: 100px;
border-bottom: 2px black solid;
}

.computer {
font-size: 100px;
border-bottom: 2px black solid;
}

.list_head {
margin: 5px 5px;
background-color: #bdb98c;
border-radius: 10px
}

.list_head span{
font-size: 30px;
margin: 10px auto 10px 20px;
color: white;
}

.img_list > div{
float: left;
margin: 10px 50px 10px 50px;
}

.img_list img{
width: 160px;
height: 200px;
}

.img_list span{
text-align: center;
}

.foot{
float: left;
margin: 5px 50px;
background-color: #efeedc;
width: 1820px;
}

.imgl{
float: left;
margin-left: 500px;
margin-right: 500px;
padding: 10px 0 10px 0;
}

.f{
float: left;

}