<p>Choose the course you would like to teach.</p> <optgroup label="Chemistry"> <option value="1"> Organic chemistry <option value="2"> Inorganic chemisry <option value="3"> Applied chemistry <optgroup></>
HTML optgroup element
HTML <optgroup> tag groups all the option elements under a common name. We have to select one out of these options.
Choose the course you would like to teach.
Here, the value of the label attribute in optgroup starting tag serves as the title of a group of options.
The end tag of <optgroup> element may be omitted.
All the global attributes are applicable on the optgroup element.
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