#mxarea {
    border: 1px solid black;
    position: relative;
    margin-top: 20px;
    padding-top: 20px;
    padding-left: 5px;
    padding-right: 5px;
    border-color: lightslategrey;
    border-radius: 10px;
    min-height: 60px;
}

#mxlabel {
    position: absolute;
    top: -10px;
    left: 20px;
    height: 20px;
    padding-left: 5px;
    padding-right: 5px;
    background-color: dimgrey;
    border: 1px solid black;
    text-align: center;
    color: aliceblue;
    font-size: 85%;
    font-weight: 500;
}