.pre-page-arrow-icon {
    position: absolute;
    z-index: 10;
    color: white;
    top: calc(50% - 42px);
    left: 30px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, .3);
    transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -webkit-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    border-radius: 50%;
}

.next-page-arrow-icon {
    position: absolute;
    z-index: 10;
    color: white;
    top: calc(50% - 42px);
    right: 30px;
    padding: 10px 5px;
    background: rgba(255, 255, 255, .3);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}