<--body{
background: url("https://images.cnblogs.com/cnblogs_com/LZH-321/1829871/o_2008170957039f536c246ebfdc0f5eea230e2673e889.jpg") no-repeat;
background-size: cover;
}
#home{
background: rgba(250,250,250,0.7);
width: 85%;
margin: 0 auto;
border-radius: 10px;
}
#header{
border:none;
}-->