HTML <optgroup> tag
HTML <optgroup> tag : Definition
• The HTML <optgroup> tag is used to group related options in a <select> element(dropdown list).
• These dropdown values are specified by a numbers of <option> tags and grouped using the <optgroup> tag.
Html <optgroup> tag example
<!DOCTYPE html> <html> <body> <label for="tutorial_choice">Course: </label> <select id="tutorial_choice"> <optgroup label="BE/ B.TECH"> <option value="html">CSE</option> <option value="css">IT</option> <option value="css">EEE</option> <option value="css">ECE</option> <option value="css">MECH</option> <option value="css">OTHERS</option> </optgroup> <optgroup label="DIPLOMA"> <option value="html">AUTO ENGG</option> <option value="html">CSE</option> <option value="css">IT</option> <option value="css">EEE</option> <option value="css">ECE</option> <option value="css">OTHERS</option> </optgroup> </select> </body> </html>