diff --git a/src/css/y.css b/src/css/y.css
index dd15e46..799993a 100644
--- a/src/css/y.css
+++ b/src/css/y.css
@@ -10,7 +10,7 @@ h1,h2,h3,h4,h5,h6 {
     margin: calc(1ex/0.42) 0; }
 #preamble h1 { margin: 0; }
 p { text-align: justify; hyphens: auto; }
-pre { overflow-x: scroll; padding-left: 1em; border-left: dotted 1px; }
+pre { overflow-x: scroll; padding: 1em; border-left: dotted 1px; }
 pre > code { background: none; font-size: 0.875em; padding: 0; }
 code,pre { font-family: Menlo, Monaco, monospace; font-size: 0.825em; }
 code { padding: 1px 3px; }
@@ -82,6 +82,7 @@ figcaption { text-align: right; font-style: italic; font-size: 0.875em; }
 
     --bg: #fff;
     --fg: #000;
+    --gr: hsl(218,20%,95%);
 }
 
 img { filter: brightness(0.8) sepia(100%) hue-rotate(185deg) saturate(0.5); }
@@ -101,11 +102,13 @@ img:hover { filter: none; }
         --g: #939452;
         --bg: hsl(218,20%,16%);
         --fg: hsl(218,20%,70%);
+        --gr: hsl(218,20%,20%);
     }
     img { filter: brightness(0.6) sepia(100%) hue-rotate(185deg) saturate(0.5); }
     img:hover { filter:  brightness(0.7); }
 }
 
+pre,code { background: var(--gr); }
 body, body > div {
     background: var(--bg);
     color: var(--fg);