.slidenavOpenIcon {
    position: fixed;
    top: 0px;
    left: 0px;
    margin-top: 10px;
    margin-left: 20px;
    padding: 15px;
    border-radius: 15px;
    background-color: lightgray;
    cursor: pointer;
    font-size: xx-large;
    box-shadow: 0 0 5px 5px white;
    color: black;
}

.slidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 99999;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    transition: 0.5s;
    padding-top: 60px;
}

    .slidenav a {
        padding: 8px 8px 8px 32px;
        text-decoration: none;
        font-size: 25px;
        color: #818181;
        display: block;
        transition: 0.3s;
        white-space: nowrap;
    }

        .slidenav a:hover {
            color: #f1f1f1;
        }

    .slidenav .slidenavCloseIcon {
        position: absolute;
        top: 5px;
        right: 5px;
        font-size: xx-large;
        padding: 15px;
        border-radius: 15px;
        cursor: pointer;
        color: lightgray;
    }
        .slidenav .slidenavCloseIcon:hover {
            color: #f1f1f1;
            box-shadow: 0 0 5px 5px white;
        }

    .slidenav label {
        padding: 8px 8px 8px 32px;
        text-decoration: underline;
        font-size: 25px;
        color: #818181;
        display: block;
        transition: 0.3s;
        white-space: nowrap;
    }

@media screen and (max-height: 450px) {
    .slidenav {
        padding-top: 15px;
    }

        .slidenav a {
            font-size: 18px;
        }
}