Fixes blockquote styling

src/styles/global.css

@@ -181,9 +181,10 @@ pre > code {
   all: unset;
 }
 blockquote {
-  border-left: 4px solid var(--accent);
-  padding: 0 0 0 20px;
-  margin: 0px;
+  border-left: 4px solid var(--color-gray);
+  padding: 0 8px 0 16px;
+  margin: 0;
+  background-color: var(--color-space-blue-light);
 }
 hr {
   border: none;