#doc, #hd, #ft {
	height: auto; clear: both;
}
#main_01 {
	height: auto; float: left; margin-top: 10px;
}
#main_02 {
	height: auto; float: left; margin-left: 5px; margin-right: 5px;
}
#main_03 {
	height: auto; float: right; margin-top: 10px;
}