.atc-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 8px;
  background: #fff;
  border: 1px solid #e2e2e2;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0,0,0,.12);
  min-width: 250px;
  z-index: 99;
  overflow: hidden;
}

.atc-menu a {
  display: block;
  padding: 11px 16px;
  color: #1c1c1c;
  text-decoration: none;
  font-size: 15px;
  line-height: 1.3;
}

.atc-menu a + a {
  border-top: 1px solid #f0f0f0;
}

.atc-menu a:hover {
  background: #f6f6f6;
}