Try clicking on https://docs.mongodb.com/manual/reference/glossary/#std-term-accumulator. It should show "accumulator", but the page header covers it up.

This CSS fixes it for me on Chrome:

/* Page header is 64px + 45px = 109px. */
* { scroll-padding-top: 109px; }  

This Stack Overflow question suggests "scroll-margin-top", but that didn't work for me: https://stackoverflow.com/questions/4086107/fixed-page-header-overlaps-in-page-anchors

Another small but nice improvement would be to bring back the yellow highlight:

:target { background: #ff9; }

This is especially helpful for anchors near the end of the page. If you try clicking either of these:

• https://docs.mongodb.com/manual/reference/glossary/#std-term-zlib
• https://docs.mongodb.com/manual/reference/glossary/#std-term-zone

The highlight makes it clear where you've landed, even though the page can't scroll any farther.