diff --git a/quartz/components/pages/FolderContent.tsx b/quartz/components/pages/FolderContent.tsx
index 67cfa8d..436ed91 100644
--- a/quartz/components/pages/FolderContent.tsx
+++ b/quartz/components/pages/FolderContent.tsx
@@ -33,7 +33,8 @@ export default ((opts?: Partial<FolderContentOptions>) => {
       const isDirectChild = fileParts.length === folderParts.length + 1
       return prefixed && isDirectChild
     })
-
+    const cssClasses: string[] = fileData.frontmatter?.cssclasses ?? []
+    const classes = ["popover-hint", ...cssClasses].join(" ")
     const listProps = {
       ...props,
       allFiles: allPagesInFolder,
@@ -45,7 +46,7 @@ export default ((opts?: Partial<FolderContentOptions>) => {
         : htmlToJsx(fileData.filePath!, tree)
 
     return (
-      <div class="popover-hint">
+      <div class={classes}>
         <article>
           <p>{content}</p>
         </article>
diff --git a/quartz/components/pages/TagContent.tsx b/quartz/components/pages/TagContent.tsx
index 890755b..5050746 100644
--- a/quartz/components/pages/TagContent.tsx
+++ b/quartz/components/pages/TagContent.tsx
@@ -26,7 +26,8 @@ function TagContent(props: QuartzComponentProps) {
     (tree as Root).children.length === 0
       ? fileData.description
       : htmlToJsx(fileData.filePath!, tree)
-
+  const cssClasses: string[] = fileData.frontmatter?.cssclasses ?? []
+  const classes = ["popover-hint", ...cssClasses].join(" ")
   if (tag === "/") {
     const tags = [
       ...new Set(
@@ -37,9 +38,8 @@ function TagContent(props: QuartzComponentProps) {
     for (const tag of tags) {
       tagItemMap.set(tag, allPagesWithTag(tag))
     }
-
     return (
-      <div class="popover-hint">
+      <div class={classes}>
         <article>
           <p>{content}</p>
         </article>
@@ -81,7 +81,7 @@ function TagContent(props: QuartzComponentProps) {
     }
 
     return (
-      <div class="popover-hint">
+      <div class={classes}>
         <article>{content}</article>
         <p>{pluralize(pages.length, "item")} with this tag.</p>
         <div>