body {width:100%; height: 100%; background: url(../img/bg.jpg); background-position: center center; background-repeat: no-repeat; background-attachment: fixed; background-size: cover;}

.logo, .logouse, .title, .libao .desc{width: 100%; margin: 0; display: flex; justify-content: center;}
.logo img{width: 60%; align-self: flex-start; display: block; margin: .5rem auto;}
.logouse img{width: 95%; align-self: flex-start; display: block; margin-left: -1rem}
.title img{width: 80%; align-self: flex-start; display: block; margin: .5rem auto;}
.libao img{width: 50%; align-self: flex-start; display: block; margin: .5rem auto;}
.desc img{width: 90%; align-self: flex-start; display: block; margin: .5rem auto;}

.form{width: 100%; margin: 0; display: block; text-align: center;}
.form span{width: 70%; margin: 10px auto; display: block; text-align: center;}
.form span input{
    width: 100%; margin: 0 auto; display: block; line-height: 2.5rem; height: 2.5rem; outline-style: none;
    border: 1px solid #ccc; border-radius: .7rem; padding: .3rem .5rem; font-size: 1rem; background: linear-gradient(white, #FEE46A);
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6)
}
.form span img{width: 65%; margin: 0 auto; cursor: pointer;}