JSFiddle - React, Tailwind, and code Playground

HTML

<div id="companyLogo">
    <a href="index.php?module=Home&amp;action=index" border="0">
        <img src="themes/default/images/company_logo.png?v=hQ67b-0XWvvSENtpYeZcIw&amp;logo_md5=1d2df0902a895af3e05dbc7c4e6758eb" alt="Company logo" border="0" height="115" width="141" />
    </a>
</div>

JavaScript

var o = document.getElementById('companyLogo');
o.onmouseover = function() {
    var a = this.getElementsByTagName('a');
    for (x in a) {
        a[x].onclick = function() { return false; };
    }
};