/* Furo's .math-wrapper sets overflow-x: auto but leaves overflow-y at its
   default (visible). Per the CSS overflow spec, a non-visible value on one
   axis forces the other axis's 'visible' to compute as 'auto' too — so
   every equation becomes vertically scrollable as well. MathJax's
   screen-reader-only <mjx-assistive-mml> layer is clipped (clip: rect(1px,
   1px, 1px, 1px)) but not zero-size — its un-clipped box can be much taller
   than the visible rendering, especially for \tag{}'d equations (e.g. the
   Constraints section) — so that forced vertical scrollbar reveals a large
   empty area with nothing visible in it. Pinning overflow-y keeps the
   horizontal scroll (for genuinely wide formulas) without the phantom
   vertical one.
*/
[role="main"] .math-wrapper {
    overflow-y: hidden;
}