*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.ex{
    width: 100%;
    height: 400px;
    background-color: aquamarine;
    display: block;
    gap: 10px;
    padding: 10px;
    text-box: 20px;
    align-content: center;
    position: relative;
}


.di{
    width: 300px;
    position: absolute;
    top: 90px;
    background-color: black;
    height: 100px;
}