h3{
text-align:center;
color:#eee;
font-weight:normal;
font-size:14px;
font-size:60px;
background-color:#444;
body{
}
404
text-align:center;
color:#eee;
font-weight:normal;
font-size:14px;
font-size:60px;
background-color:#444;
404,您请求的文件不存在!
body{
}