.curvy {position:relative; width:220px; height:150px; background:#08c; color:#000; margin:5em auto;}
#ctl, #cbl, #ctr, #cbr {position:absolute; width:20px; height:20px; color:#08c; background:#fff;overflow:hidden;}
#ctl {top:0px; left:0px;}
#cbl {top:130px; left:0px;}
#ctr {top:0px; left:200px;}
#cbr {top:130px; left:200px;}
#quadtl, #quadtr, #quadbl, #quadbr {position:absolute; font-size:150px; font-family:arial; color:#08c;line-height:40px;}
#quadtl {left:-8px;}
#quadtr {left:-25px;}
#quadbl {left:-8px; top:-17px;}
#quadbr {left:-25px; top:-17px;}
#txt {position:absolute; top:5px; left:15px; width:200px; height:140px;}
#txt p {font-size:10px; line-height:17px; color:#fff;}