html dropdownlist with group
📅 — 👀 50 — 👦<select>
<optgroup label="Programming Languages">
<option value="C">C</option>
<option value="C++">C++</option>
<option value="Java">
Java
</optgroup>
<optgroup label="Scripting Language">
<option value="JavaScript">JavaScript</option>
<option value="PHP">PHP</option>
<option value="Shell">Shell</option>
</optgroup>
</select>