[KoolADE85]

A small CSS change to fix dropdown hidden elements causing horizontal scrollbars on small windows.

Fixes #4042

[github-actions]

Dash performance benchmarks

✅ all within thresholds

	scenario	metric	p90 (ms)	median	growth	baseline p90	note
✅	callback_chain	chain_ms	446.5	422.6	0.92x	499.1
✅	callback_chain	graph_ms	2.6	2.6	1.0x	2.4
✅	callback_fanout	fanout_ms	80.8	77.8	0.91x	92.5
✅	deep_nesting	render_ms	51.5	49.0	0.97x	56.8
✅	full_children_replace	replace_ms	5520.8	1937.6	19.0x	4697.1
✅	initial_render_large	render_ms	527.2	513.4	1.02x	694.4
✅	initial_render_small	render_ms	92.9	91.8	1.03x	104.0
✅	patch_append_nested	append_ms	131.7	87.9	2.44x	192.3
✅	patch_append_toplevel	append_ms	110.7	80.4	2.21x	140.2
✅	patch_scalar_update_large	update_ms	140.1	126.1	0.94x	202.9
✅	wildcard_all_resolve	wildcard_ms	293.9	277.6	0.94x	313.6
✅	wildcard_all_resolve	graph_ms	1.4	1.4	1.0x	1.3

growth = late-third / early-third per-op time; ~1 is flat, a large value means the per-op cost scales with accumulated state.

machine scale vs baseline: 0.96x - divided out of the baseline ratios so they compare like for like (the absolute warn/fail ceilings are left un-scaled); calibrated on initial_render_small.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud