.mgt150{
    margin-top: 150px;
}
.header{
    text-align: center;
}
.header h3{

}
.base-info{
    margin: 15px auto;
    padding: 15px;
    display: flex;
    justify-content: center;
    color: #ccc;
    font-size: 16px;
    border-bottom: 1px dashed #999;
}
.base-info span{
    margin: auto 20px;
}
.content{
    margin: 45px auto;
}
.footer{
    display: flex;
    justify-content: space-between;
}