.scrollToTopBtm{
    display:none;
    position: fixed;
    right: 1%;
    bottom: 120px;
    z-index: 1000;
}
.upArrow,.downArrow{
    color:#fff;
    background-color: rgb(50, 50, 50);
    padding: 5px;
    border: 1px solid rgb(50, 50, 50);
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    -khtml-border-radius: 2px;
    border-radius: 2px;
    white-space: nowrap;
    cursor: pointer;
    text-align: center;
    opacity: 0.3;
    transition: opacity 0.3s ease-in-out;
}
.upArrow:hover, .downArrow:hover{
color: rgb(255, 255, 255);
opacity: 1;
}