Actually, that was because of your own wrong Custom CSS, you set the width as 33%, and for 3 columns it becomes 99%, so 1% remains as the complete width must be 100%, I commented out that Custom CSS from your code: https://postimg.cc/rK848Zth and also removed the paddings as well and it solved the issue on mobile and now it is properly align with the tabs: https://postimg.cc/HcZqVhkQ
