slack link not working

[vaibhavdaren]

website-www.codeuino.org/index.html

Line 288 in a5a054f

onclick="window.location.href='https://goo.gl/3pwWMR'">JOIN US</button>

The same method works for

website-www.codeuino.org/index.html

Line 299 in 60172bc

<button type="submit" class="btn btn-danger" onclick="window.location.href='https://github.com/codeuino/codeuino-docs'">Contribute to documentation</button>

refer:-
https://stackoverflow.com/questions/2906582/how-to-create-an-html-button-that-acts-like-a-link