.top-place{
    position: relative;
        height: 200px;
        width: 100%;
    outline: 1px solid black;
}
.center-place{
    position: relative;
        height: 1000px;
        width: 100%;
    outline: 1px solid black;
}
.bottom-place{
    position: relative;
        height: 400px;
        width: 100%;
    outline: 1px solid black;
}