*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body{
    background-color: gray;
}

.main{
    margin:250px auto;
    padding: 10px;
    width: 500px;
    height: 80px;
    background-color: #fff;
    color: black;
    border-radius: 5px;
    box-shadow: -3px -3px 4px rgba(0, 0, 0, 0.5);
    text-align: center;
}

#ColorGenerator{
    width: 100%;
    height: 30px;
    background-color: black;
    color: #fff;
    margin-top: 8px;
    border-radius: 5px;
}