body {
    margin: 0px;
    overflow: hidden;
}

.arrow {
    position: absolute;
    background: none;
    width: 3em;
    height: 3em;
}

#uArrow {
    top: 0px;
    width: 100%;
}

#dArrow {
    bottom: 0px;
    width: 100%;
}

#lArrow {
    left: 0px;
    height: 100%;
}

#rArrow {
    right: 0px;
    height: 100%;
}

/* body {
    background-color: #192A3A;
    background-image: url(../images/background.png);
    background-blend-mode: normal;
    background-size: contain;
} */