html,body{margin:0px;padding:0px;}
div, textarea{box-sizing:border-box;}
#gnb{width:80%;height:50px;border-bottom:1px solid #ccc;}
.logo{width:150px;text-align:center;line-height:50px;border:0px solid #000;margin:0 auto;}
#content{padding:20px;}
.tarea{width:80%;height:500px;box-shadow:0 1px 3px #b6b6b6;background:#f2e277;border:1px solid #ccc;font-size:26px;padding:20px;}
#footer{text-align:center;font-size:12px;color:#666;}