HTML Guide for selected

The selected attribute on option elements is boolean, so it should not have any value associated.

To fix this issue, simply remove the value assigned to the selected attribute.

Instead of this:

<select>
  <option selected="true">Option 1</option>
  <option>Option 2</option>
  <option>Option 3</option>
</select>

Use this:

<select>
  <option selected>Option 1</option>
  <option>Option 2</option>
  <option>Option 3</option>
</select>

In the example above, we’ve removed the value assigned to the selected attribute on the first option element. This will specify that “Option 1” is the default option to be selected in the dropdown list.