#cnt .three_colummn_col1 {
float:left;
width:320px;
margin:0 10px 0 0;
}
#cnt .three_colummn_col2 {
float:left;
width:320px;
margin:0 10px 0 0;
}
#cnt .three_colummn_col3 {
float:left;
width:320px;
margin:0 0 0 0;
}