@atlaskit/editor-core/dist/esm/ui/EditorContentContainer/styles/blockMarksStyles.js

A package contains Atlassian editor core functionality

/* eslint-disable @atlaskit/ui-styling-standard/use-compiled */
import { css } from '@emotion/react';
// eslint-disable-next-line @atlaskit/ui-styling-standard/no-exported-styles
export var blockMarksStyles = css({
  // We need to remove margin-top from first item
  // inside doc, tableCell, tableHeader, blockquote, etc.
  //
  // - For nested block marks apart from those with indentation mark.
  // - Do not remove the margin top for nodes inside indentation marks.
  // - Do not remove the margin top for nodes inside alignment marks.
  // - Do not remove the margin top for nodes inside font size marks.
  //- If first element inside a block node has alignment or font size mark, then remove the margin-top.
  //- If first document element has indentation mark remove margin-top.
  // eslint-disable-next-line @atlaskit/ui-styling-standard/no-nested-selectors,@atlaskit/ui-styling-standard/no-unsafe-selectors
  '*:not(.fabric-editor-block-mark) >, *:not(.fabric-editor-block-mark) > div.fabric-editor-block-mark:first-of-type:not(.fabric-editor-indentation-mark):not(.fabric-editor-alignment):not(.fabric-editor-font-size), .fabric-editor-alignment:first-of-type:first-child, .fabric-editor-font-size:first-of-type:first-child, .ProseMirror .fabric-editor-indentation-mark:first-of-type:first-child': {
    // eslint-disable-next-line @atlaskit/ui-styling-standard/no-nested-selectors
    'p, h1, h2, h3, h4, h5, h6, .heading-wrapper': {
      // eslint-disable-next-line @atlaskit/ui-styling-standard/no-nested-selectors,@atlaskit/ui-styling-standard/no-unsafe-selectors
      '&:first-child:not(style), style:first-child + *': {
        marginTop: 0
      }
    }
  }
});