

.independent {
overflow: hidden;
height: 100px;
width: 99%;
border: solid 1px #fff;
}
.float0 {
float: left;
margin: 5px -300px 0 5px;
clear: left;
height: 90px;
width: 400px;
background: #dce;
}
.float1 {
float: left;
margin: 15px 0 -10px 25%;
height: 70px;
width: 200px;
background: #edc;
}
.float2 {
float: left;
margin: 15px 0 -10px 25%;
height: 70px;
width: 200px;
background: #edc;
}
.float3 {
float: left;
margin: 15px 0 -10px 25%;
background: #edc;
}
Gecko browsers are a bit lost...