react-html-elements/dist/dropdown.css

A standalone, dependency-free React component library for customizable buttons, toggles, radios, checkboxes, dropdowns, and input fields.

.rb-dropdown {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.5em 1.2em;
  border-radius: 4px;
  border: 2px solid var(--rb-dropdown-color, #007bff);
  background: #fff;
  color: #333;
  outline: none;
  transition: border 0.2s;
  min-width: 120px;
  cursor: pointer;
}

.rb-dropdown:focus {
  border-color: #0056b3;
}

.rb-dropdown:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.rb-dropdown option[disabled][hidden] {
  display: none;
}