how to open only whatsapp application when click on a hyperlink/image/button
<p>A code required for html website, when user open my website from mobile device and click on hyper link/image/button, then the link should open only whatsapp application.</p>

<p>I only need to open whatsapp application when user click on a link in my html website. that's it.</p>

<p>please share the code.</p>