iPhone X seems to be using Desktop breakpoint for height of Slider

Published: http://clock-woodburners-new-sli-71c050fe9c08c.webflow.io/woodburning-stoves
Read only: https://preview.webflow.com/preview/clock-woodburners-new-sli-71c050fe9c08c?utm_source=clock-woodburners-new-sli-71c050fe9c08c&preview=71486f881a24fd092166567154dcf332

Having problems with Sliders using 100% and 75% VH. They format correctly in design views from Desktop though to Mobile, but on iPhone X, the landscape version seems to be pulling though the Desktop Breakpoint.

Thanks