contiago-toolbar/app/containers/ArticlePage/components/Attachments/Media/HoverPreview.js

One of the options for outputting content from contiago xml-server

import styled from 'styled-components';

export default styled.div`
  display: none;
  justify-content: center;
  align-items: center;
  height: 100%;
  color: white;
  font-size: ${(props) => props.iconSize};
  background-color: ${(props) => props.theme.mainColor};
`;