Set a max width of 100% to both the “div block 21” and “form block” elements and you should be good!
edit: sorry, that was for the form on your contact page (that actually needed help too!) I’ll take a look at the lending page now, but it may be a similar solution.
For anyone in the future who may be looking at this, the code pictured here has the styles (that I have in my previous reply) added to the bottom, when they should be placed within the <style></style> tags more toward the top of the code.