Select boxes with the optgroup element

  
<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">

<head>
  <title>Select boxes with the &lt;optgroup&gt; element</title>
</head>

<body>
<form action="" method="get" name="frmInfo">
  Please select the product you are interested in:<br />
  <select name="selInformation">
    <optgroup label="Hardware">
      <option value="Desktop">Desktop computers</option>
      <option value="Laptop">Laptop computers</option>
    </optgroup>
    <optgroup label="Software">
      <option value="OfficeSoftware">Office software</option>
      <option value="Games">Games</option>
    </optgroup>
    <optgroup label="Peripherals">
      <option value="Monitors">Monitors</option>
      <option value="InputDevices">Input Devices</option>
      <option value="Storage">Storage</option>
    </optgroup>
  </select>
<br /><br /><input type="submit" value="Submit" />
</form>
</body>
</html>

1.	select tag presents a drop-down list with choices indicated by the option tags
2.	select tag
3.	multiple select
4.	Style for select option
5.	Set form select font size
6.	Set form select option font size
7.	Set form select event option color and background color
8.	option tag
9.	Option groups
10.	Select control Jump Menu
11.	fieldset to wrap 'select' control
12.	Drop down select boxes
13.	Scolling select boxes
14.	Select boxes with the multiple attribute
15.	Creating groups of options with a disabled option
16.	input:focus, textarea:focus, select:focus
17.	optgroup
18.	Property selector for option
19.	select font-size: 0.9em;
20.	select element
21.	A multiline select
22.	Pulldown Example

Select boxes with the optgroup element : select « Form « HTML / CSS

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