SELECT 목록 그룹별로 묶어서 표시하기 > html

<select name="language">
    <optgroup label="선택하세요" style="color:orange"></optgroup>
    <optgroup label="Web" style="color:green">
        <option>ASP</option>
        <option>PHP</option>
        <option>JSP</option>
    </optgroup>
    <optgroup label="Window" style="color:blue">
        <option>VB</option>
        <option>C++</option>
        <option>JAVA</option>
    </optgroup>
</select>