.content_bis_left{background-image:url(../img/border_left.png);background-position:left;background-repeat:repeat-y;}
.content_bis_right{padding-left:25px;padding-right:25px;padding-top:5px;padding-bottom:5px;background-image:url(../img/border_right.png);background-position:right;background-repeat:repeat-y;}
.content_child_top{width:100%;height:20px;background-image:url(../img/border_top.png);background-repeat:repeat-x;}
.content_child_top_left{float:left;width:20px;height:20px;background-image:url(../img/border_left_top_corner.png);background-repeat:no-repeat;}
.content_child_top_right{float:right;width:20px;height:20px;background-image:url(../img/border_right_top_corner.png);background-repeat:no-repeat;}
.content_child_left{float:left;width:20px;background-color:#0000FF;background-image:url(../img/border.png);background-repeat:repeat-y;min-height:100%;}
.content_child_right{float:right;width:20px;background-color:#FFFF00;}
.content_child_bottom{width:100%;height:20px;background-image:url(../img/border_bottom.png);background-repeat:repeat-x;}
.content_child_bottom_left{float:left;width:20px;height:20px;background-image:url(../img/border_left_bottom_corner.png);background-repeat:no-repeat;}
.content_child_bottom_right{float:right;width:20px;height:20px;background-image:url(../img/border_right_bottom_corner.png);background-repeat:no-repeat;}