div#container_content {
    padding:20px 20px 20px 20px;
    text-align:justify;
}

div.content_left,div.content_right {
    width:470px;
    float: left;
    text-align:justify;
}
div.content_left {
    padding:0px 10px 0px 0px;
}
div.content_right {
    padding:0px 0px 0px 10px;
}

/********* FLEXIBLE CONTENT ELEMENTS **********/
div.content_left,div.content_right {
	border:0px solid red;
}
div.content_1_column_left,div.content_1_column_right {
	border:0px solid green;
}
div.content_1_column_left {
	padding-left:20px;
	padding-right:20px;
	width:260px;
}
div.content_1_column_right {
	padding-left:20px;
	width:200px;
}