body{
    background: #ffffff;
    font-family: 'Microsoft YaHei UI','Helvetica Neue','Segoe UI',sans-serif;
}
.title{
    display: block;
    text-shadow: -3px 2px 3px #404040;
    font-family: "Consolas",sans-serif;
    background: #808080;
    font-size: 25px;
    color: white;
    width: 100%;
    padding: 10px 10px 10px 10px;
}
.title:hover{
    text-decoration: none;
    color: white;
}
.main{
    width: 80%;
    margin: 0 auto;
    padding: 10px 0 10px 0;
}
@media (max-width: 550px){
    .main{
        width: 100%;
    }
}
.image{
    border: 2px solid #808080;
    position: relative;
    margin-top: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    max-width: 640px;
}
.code{
    margin-top: 30px;
    margin-bottom: 30px;
}
.code p{
    width: 90px;
    margin-left: 10px;
    margin-right: 10px;
    text-align: center;
    border: 1px solid #404040;
}
.code .list-group-item{
    font-size: 85%;
    padding: 5px 10px 5px 10px;
}
.code a{
    word-break: break-all;
    word-wrap: break-word;
}
@media (max-width: 550px) {
    .code a{
        font-size: 80%;
    }
}
.code span{
    float: right;
    padding: 5px 4px 5px 4px;
    margin-right: 20px;
    font-size: 80%;
    background: #888888;
    color: white;
}