.wrap { width:406px; text-align:right; margin:auto; } textarea { width:400px; max-width:400px; height:200px; display:block; margin:auto; font-size:20px; box-shadow:-2px -4px 8px rgba(190,189,189,0.42) inset; } input[type=button] { margin-top:12px; padding:10px; outline:none; border:none; cursor:pointer; vertical-align:top; color:#fff; font-weight:bold; font-family:Arial; background:-webkit-linear-gradient(top,#71ccfd,#2d76fd); border-radius:8px; }
1个汉子为2个字符.