.row {
    justify-content: center;  
}

h1{
    padding: 60px 0px 20px 0;
}

h4{
    font-size: large;
    padding: 20px 0px 40px 0;
}

.frame {
    display: inline-block;
    background-color: rgb(69, 141, 189);
    padding: 40px 13px 10px 13px;
    border-radius: 10px;
}

.key {
    display: inline-block;
    width: 48px;
    height: 230px;
    border-radius: 0 0 10px 10px;
    background-color: white;
    cursor: pointer;
}

.half {
    background-color: black;
    position: absolute;
    width: 30px;
    height: 160px;
    margin: 0 -17px;
}