.exad-tab-triangle-bottom.active::before {
position: absolute;
content: '';
height: 17px;
width: 20px;
left: 50%;
bottom: -8px;
transform: translateX(-50%) rotate(0deg);
z-index: -1;
clip-path: polygon(0 0, 50% 100%, 100% 0);
background: red;
}