html – auto open whatsapp
<a href="https://wa.me/628998080016?text=Hiya, i wanna ask about something?" target="_blank">Click here to open Whatsapp</a> <!-- 628998080016 = your number --> <br> Source : <a target="_blank" href ="https://faq.whatsapp.com/en/general/26000030">https://faq.whatsapp.com/en/general/26000030</a> CODEPEN LINK