div#head {
padding: 20px;
font-size: 30px;
color: rgba(255, 255, 255, 0.8);
text-align:center;
}
body {
background-image: url("https://cdn.jsdelivr.net/gh/BNDong/Cnblogs-Theme-SimpleMemory@master/img/webp/home_top_bg.webp");
}
#home {
background-color: rgba(255,255,255, 0.9);
border-radius: 5px;
}