.mmcb-flow-arrow{
  width: 10px;          /* thickness */
  height: 52px;
  margin: 26px auto;
  background: #e8773a;
  border-radius: 999px;
  position: relative;
}

.mmcb-flow-arrow::after{
  content:"";
  position:absolute;
  bottom:-16px;
  left:50%;
  transform:translateX(-50%);
  border-left:16px solid transparent;
  border-right:16px solid transparent;
  border-top:22px solid #e8773a;
}