I found the answer to my question. Paste the below code in the header.php file inside the section listed as “<div id=”top-menu-container”>”
<form method=”get” id=”searchform” action=”https://d5creation.com/”>
<label for=”s” class=”assistive-text”></label>
<input type=”text” class=”field” name=”s” id=”s” placeholder=”Search Text Here” />
<input type=”submit” class=”submit” name=”submit” id=”searchsubmit” value=”Search” />
</form>