.ajax-nav {
    display: block;
    width: 50px;
    text-align: center;
    font-size: 1.5em;
    margin: 20px auto;
}
    .ajax-nav .icomoon {
        display: block;
        margin-top: 5px;
        color: rgba(0, 177, 172, 1 );
        -webkit-transition: all 0.3s;
        -moz-transition: all 0.3s;
        -ms-transition: all 0.3s;
        -o-transition: all 0.3s;
        transition: all 0.3s;
    }
    .ajax-nav:hover {
        cursor: pointer;
    }
    .ajax-nav:hover .icomoon {
        margin-top: 10px;
    }