Sorry I think I found the CSS
This is the gray Headline thingy
Code:
/* image caption text */
figcaption.figcaptionCodeSnippet {
color: #505759;
font-family: 'Open Sans', Helvetica, sans-serif;
max-width: 680px;
margin: 0.75em auto 0.45em auto;
padding: 0;
font-size: 0.90em;
font-weight: 400;
line-height: 1.5em;
letter-spacing: 0.02em;
word-wrap: break-word;
}
This is the whole block the text is in
Code:
.codeSnippet[data-startNumber] pre,
.codeNoHighlight[data-startNumber] pre {
counter-reset: line;
border-left: 1px solid #ddd;
background: transparent!important;
margin-left:4em;
overflow: visible !important;
position: relative;
}