#container3 {
    float:left; /* added */
    width:100%; /* added */
    background:lightgreen; /* added */
		text-align:center;
}
#container2 {
    float:left; /* added */
    width:98%; /* added */
    background:lightgreen; /* added */
		margin-left:1%;
		margin-right:1%;
		text-align:center;
}
#container1 {
    float:left;
    width:100%;
    background:#C6DBE7;
}
#col1 {
    float:left;
    width:19%;
		margin-left:1%;
}
#col2 {
    float:left;
    width:58%;
		margin-left:1%;
		margin-right:1%;
}
#col3 {
    float:left;
    width:19%;
		margin-right:1%;
}