html,body{
    height: 100%;
}
*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
.content{
    height: 100%;
    position: relative;
}
.content .text{
    position: absolute;
    top: 40%;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 50px;
    font-weight: bold;
}
.content .box{
    position: absolute;
    bottom: 60px;
    left: 0;
    right: 0;
    text-align: center;
}
.content .box a{
    text-decoration: none;
    color: #000;
}