html,body{
    margin:0;
    padding:0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.dic-content-top{
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    height: 50vh;
    background: #f5f5f5;
}
.dic-content-bottom{
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    height: 50vh;
    background: #fff;
}
#dic-but{
    position: absolute;
    top: 0;
    left: 0;   
}