#col_1 { width:610px; height:auto; float:right; }

content.sidebar sidebar .textblock { float:none; width:100%; height:auto; }
#textblock_1, #textblock_4 { clear:both; width:100%; height:auto; }
#textblock_4 { display:none; padding-top:1.5em; margin-top:1.5em; border-top:2px solid #101114; }
content.sidebar .textblock { float:left; width:285px; height:auto; }
content.sidebar .textblock + .textblock { padding-left:40px; }