.box{width:480px;margin:50px auto 0;text-align:center;font-size:15px}.box .header{margin-top:20px;margin-bottom:20px;text-align:center;font-size:25px}.box .content{text-align:center;margin-bottom:30px}.box .link{text-decoration:underline;text-align:center;display:inline-block;margin:0 auto 10px}@media (max-width:640px){.box{width:340px;margin-bottom:50px}.box .header{width:300px;font-size:20px;text-align:center;margin:0 auto 10px}.box .content{width:300px;font-size:18px;margin:0 auto 30px}.box .content p{line-height:1}.box .link{margin-bottom:5px}}