Reply To: horizontal range-slider missing selection track highlight from

[admin]

I mean … since 4.0! I need additional CSS to make that div appear for horizontal sliders. This is a regression in your CSS. Please treat it as such.
Below is a quick fix:

smart-slider:not([orientation=vertical]) .smart-value {
--h: 2px; --d: -1px;
height: var(--h);
transform: translate(var(--d), var(--d));
}