style: styling for codeblocks without langs (#527)

Jacky Zhao

2023-10-05 afa163f2fe9c52d4b3bf1a2e4d48887916b67c24

 quartz/styles/variables.scss

@@ -1,5 +1,6 @@
$pageWidth: 800px;
$pageWidth: 750px;
$mobileBreakpoint: 600px;
$tabletBreakpoint: 1200px;
$sidePanelWidth: 400px;
$sidePanelWidth: 380px;
$topSpacing: 6rem;
$fullPageWidth: $pageWidth + 2 * $sidePanelWidth;