Add `max-width` on desktop view and some padding on smaller screens. Props chetan200891, azaozz, Clorith, afragen. Fixes #48607. git-svn-id: https://develop.svn.wordpress.org/trunk@47772 602fd350-edb4-49c9-b593-d223f7449a82
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wp-admin/css/customize-widgets.css