#close-btn,.close-btn-wrapper{text-align:center}#close-btn{width:100px;border:1px solid #ccc;border-radius:5px;padding:10px;margin:20px auto 0;background:#337ab7;color:#fff}#mask{background:rgba(0,0,0,.7);position:fixed;top:0;bottom:0;z-index:9998}#mask,#modal{right:0;left:0;display:block}#modal{background:#fff;color:#555;max-width:750px;padding:40px;border-radius:5px;position:absolute;top:40px;margin:0 auto;z-index:9999;-webkit-transition:.4s;transition:.4s}#modal h1{font-size:20px;text-align:center;margin:0 0 20px}#modal p{max-width:500px;margin:0 auto}.hidden{display:none}