.circle-tabs__tab--active::before {
    border: 25px solid transparent;
    border-top-color: #EBEBEB;
    display: block;
    height: 0;
    width: 0;
    transform: rotate(180deg);
    content: "";
    left: 50%;
    margin-left: -25px;
    position: absolute;
    bottom: 0;
    margin-bottom: -30px
}