body{
font-family:Microsoft YaHei;
background:#f2f2f2;
}
.box{
width:320px;
margin:100px auto;
padding:30px;
background:white;
border-radius:15px;
box-shadow:0 0 15px #aaa;
}
input,button{
width:100%;
height:40px;
margin:8px 0;
}
button{
cursor:pointer;
}