Cleaner code blocks in dark mode.

static/style.css

@@ -106,4 +106,23 @@ article.post {
         margin-top: 0;
         color: #f7da4a;
     }
+    /* Code blocks */
+    pre {
+        padding: 0.5ex;
+        background-color: inherit;
+        box-shadow: none;
+    }
+    pre code {
+        padding: 1ex;
+        font-size: medium;
+        background: #000;
+        color: #fff;
+        border: none;
+    }
+
+    code {
+        padding: 0.25ex;
+        margin: 0.25ex;
+        border: 1px solid #00000;
+    }
 }