a {
   outline: 0!important;
}

.brxe-button {
    border-radius: 30px;
}
.sub-menu {
  margin-top: 1rem!important;
  box-shadow: 0px 4px 16px rgba(0, 0, 0, 0.12);
}
.sub-menu::before  {
  position: absolute;
  content: "";
  top: 0.5rem;
  left: 3rem;
  transform: translateY(-100%);
  width: 10px; 
  height: 13px; 
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 13px solid #ffffff;
}