Playground's controls styles fix #1401

Job	Run time
list-branches	11s
Build for v4	6s
Build for json-source-stable	7s
Build for data-view-clamped-stage-2	9s
Build for master	6s
Build for web	5s
Build for v3	11s
Build for v4-types	36s
Build for playground-styles-fix	45s
Build for proposals-types	7s
combine-pages-and-deploy	13s
	2m 36s

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