body { height:100%; position:relative; }

#hideshow1, #hideshow2, #hideshow3, #hideshow4, #hideshow5, #hideshow6 { float:left; width:80%;  }
.popup_block	{ color:#fff; background:#6d6d6d; border:2px solid #fff; padding:25px; width:720px; height:700px; position:absolute; top:140px; left:20px; margin:0; z-index:200; }
.popup_block h3	{ margin:14px 0 20px 0; padding:0 0 20px 0; border-bottom: 1px solid #bbb; line-height:1.3em; font-size:16px; font-weight:normal; }
.popup_block p	{ padding:5px 0; margin:5px 0; }
.popup_block img.cntrl { position:absolute; right:5px; top:5px; }