/*
For Back_to_top.js
*/
#myBtn {
    display: none;
    position: fixed;
    width: 40px;
    height: 40px;
    bottom: 40px;
    right: 40px;
    z-index: 99;
    font-size: 32px;
    border: none;
    outline: none;
    background-color: #83ce3b;
    color: white;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    text-align: center;
    line-height: 20px;
}

    #myBtn:hover {
        background-color: #72a234;
    }

    #myBtn:visited {
        background-color: #83ce3b;
    }