page scrolls down everytime i choose a variant on my product page

[oworor]

Every time i click on one of the variants on my page - the page iteratively scrolls down a bit,
Anyone know the issue/solution?

page: https://shop.myedspace.co.uk/?_ab=0&_fd=0&_sc=1
pass: reulyi

go on courses then GCSE and test for yourself

[Zqdo]

Tested it on desktop and mobile, and didn't see any issues. By any chance, what browser are you using?