CSS - Menu Drop

body {
    margin: 0;
    padding: 0;
    font-family: arial;
    font-size: 12px;
}
.topo {
    height: 30px;
    background-color: #333;
}

.topoint {
    width: 100%;
    max-width: 1040px;
    height: 30px;
    margin: auto;
}
.topoleft {
    width: 50%;
    height: 30px;
    float: left;
}
.toporight {
    width: 50%;
    height: 28px;
    float: right;
    margin-top: 2px;
}
.topoleft ul {
    margin: 0;
    padding: 0;
    list-style: none;
}
.topoleft li {
    float: left;
    height: 30px;
    line-height: 30px;
    margin-left: 8px;
    margin-right: 8px;
}
.topoleft li a {
    text-decoration: none;
    color: #fff;
}
.topoleft li .ativo{
    color: red;
}
.topobusca {
    width: 110px;
    height: 20px;
    outline: 0;
}
.toporight a {
    float: right;
}
.toporight input {
    float: right;
}
.toporight img {
    margin-right: 4px;
}
.topo2 {
    height: 95px;
    color: 000;
}
.topo2int {
    width: 100%;
    max-width: 1040px;
    height: 95px;
    margin: auto;
}
.logo {
    width: 230px;
    height: 90px;
    float: left;
    margin-top: 5px;
}
.topo2 .banner {
    width: 650px;
    height: 80px;
    float: right;
    margin-top: 7px;
    background-color: red;
}
.menu {
    height: 40px;
    background-color: red;
}
.menuint {
    width: 100%;
    max-width: 1040px;
    height: 40px;
    margin: auto;
}
.menu ul {
    margin: 0;
    padding: 0;
    list-style: none;
}
.menu li {
    float: left;
    height: 40px;
    line-height: 40px;
    padding-left: 8px;
    padding-right: 8px;
}
.menu li:hover .submenu {
    display: block;
}
.menu a{
    color: #FFF;
    text-decoration: none;
}
.submenu {
    width: 150px;
    height: 150px;
    background-color: red;
    position: absolute;
    display: none;
}
.submenuitem {
    height: 30px;
    line-height: 30px;
    width: 140px;
    padding-left: 10px;
}
.submenuitem:hover {
    background-color: #FF5555;
}
.submenusub {
    width: 100px;
    height: 100px;
    background-color: blue;
    position: relative;
    float: right;
    display: none;

}
.menu li:hover .submenu .submenusub {
    display: block;
}