mr-legend_wiki/lib/plugins/ckgedit/ckeditor/additional.css

 blockquote {
  border: 1px dotted #ccc;
  background: #eee url(data:image/gif;base64,R0lGODlhLgAcAMQAAPT09PHx8e7u7unp6ejo6Ofn5+bm5uXl5eTk5OPj4+Li4t/f397e3t3d3dzc3Nvb29ra2v///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABEALAAAAAAuABwAAAW2YCSOJLkgaJqWrKi+ram8dBwJdB03Od3Ehh6MdUgIXwvWcVhyLFEMCEP5tD2WD1tkqY1chT/t0dB1CrNiIVl7OCbTwu722F0Cujzhoa6WG4UObGMBfEtvVEtrLU8qhyOMKIokkCl7IwOUCAWIlJOZCJyQlnOZBCWfCAqPqKesIm2frbEimLMjeZQJnpmhT45BlKMjX5C9RwKLkGiyiTaMqi3AXHA90EDTeD2Bcj1yJSeV3rugXSEAOw==) no-repeat 0.3em 0.3em;
  padding: 1em;
  overflow: hidden;
  margin: 1em auto 1em auto;
  max-width: 90%;
}