--- id: 60b69a66b6ddb80858c51592 title: Step 28 challengeType: 0 dashedName: step-28 --- # --description-- Use a class selector to create a rule for the `black-dot` elements. Set the `width` to `10px`, the `height` to `10px`, and the `background-color` to `rgb(45, 31, 19)`. # --hints-- You should have a `.black-dot` selector. ```js assert(new __helpers.CSSHelp(document).getStyle('.black-dot')); ``` Your `.black-dot` selector should have a `width` property set to `10px`. ```js assert(new __helpers.CSSHelp(document).getStyle('.black-dot')?.width === '10px'); ``` Your `.black-dot` selector should have a `height` property set to `10px`. ```js assert(new __helpers.CSSHelp(document).getStyle('.black-dot')?.height === '10px'); ``` Your `.black-dot` selector should have a `background-color` property set to `rgb(45, 31, 19)`. ```js assert(new __helpers.CSSHelp(document).getStyle('.black-dot')?.backgroundColor === 'rgb(45, 31, 19)'); ``` # --seed-- ## --seed-contents-- ```html