.fleft { 
display: block;
width: 400px;
padding-bottom: 5px;
float: left;
}

.fright { 
display: block;
width: 405px;
height: 690px;
padding-bottom: 5px;
float: right;
}

.flefth { 
display: block;
width: 900px;
padding-bottom: 0px;
float: left;
}

.frighth { 
display: block;
width: 900px;
height: 100px;
padding-bottom: 0px;
float: left;
}