## Subject of the issue If I set `cellHeight` to a vh measure, like `7vh`, only the first grid will be initialized with 7vh, others will use 7px for some reason. ## Your environment 1.1.0 Newest, served from CDN Brave Version 1.4.96 Chromium: 80.0.3987.132 (Official Build) (64-bit) ## Steps to reproduce 1. Make multiple grids. 2. Gridstack options should contain a vh unit for the `cellHeight` property, like `'7vh'` 3. Initialize them with Gridstack.initAll(options). ## Expected behaviour All grids should have a height of 84vh. ## Actual behaviour First grid has a height of 84vh, others have 84px.