Spacing & Layout in general
- The calc boxes etc should be centered
- there should be a margin before the footer
- the top-margin of the first heading & an empty div (Section-module--section--2dbfa) create unneccesary space before the first heading
- In general, the single tools/categories (details, weight, thickness, bending ..) could get packed into tabs, so that they are easier to switch inbetween. Alternatively, a fixed-position table of contents or a left bar might ease navigation.