.dropdown-submenu {
  position: relative;
}

.dropdown-submenu a::after {
  transform: rotate(-90deg);
  position: absolute;
  right: 6px;
  top: 0.85em;
}

.dropdown-submenu .dropdown-menu {
  top: 0;
  left: 100%;
  margin-left: .1rem;
  margin-right: .1rem;
}

.dropdown-menu{
  font-size: 1.55ch;
}
.dropdown-item{
  padding: 0.25rem 1.25rem 0.25rem 0.75rem;
}