Credits
I used a modified version on this to make the dynamic menu
See the Pen <a href="https://codepen.io/YusukeNakaya/pen/abKPwEP">transform: rotateX(deg) rotateY(deg);</a> by Yusuke Nakaya (<a href="https://codepen.io/YusukeNakaya">@YusukeNakaya</a>) on <a href="https://codepen.io">CodePen</a>.