This members-only tutorial provides the steps to use the modal feature in Oxygen for sliding down a full-width search form covering the header when a magnifying glass icon in the header is clicked.

Clicking anywhere on the page outside the search form or the close button will fade away the search form.

Step 1


  • enable placeholder text for the search form by adding support for HTML5 markup
  • change the placeholder text from the default Search … to a custom "Type what are you looking for and hit return".

Install and activate Code Snippets plugin.

Go to Snippets > Add New.

Title: Add support for HTML5 markup


add_theme_support( 'html5', array( 'comment-list', 'comment-form', 'search-form', 'gallery', 'caption' ) );

Set it to run only on front-end. Save changes and activate.

Add another snippet.

Title: Change search form input's placeholder text


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For adding code blocks wrap the code in three backticks. Markdown should work.
Provide a URL of your site/webpage if something is not working.

4 comments on “Header Search in Oxygen”

    1. Hi Carrie.

      In Step 1 try replacing

      $form = str_replace( 'Search …', 'Type what are you looking for and hit return', $form );


      $form = str_replace( 'Search ...', 'Type what are you looking for and hit return', $form );
  1. Hi Sridhar, I’m trying to use it with the sticky header. It works well with a regular header, but when it sticky, the modal disappears / behind the sticky menu. I tried to set the modal Z-index to more than 2147483640 (z-index on the sticky header) but still didn’t work. Is this one of modal limitation? Thank you.

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