diff --git a/src-web/components/responseViewers/MultipartViewer.tsx b/src-web/components/responseViewers/MultipartViewer.tsx
index 354d1a62..cceaec2c 100644
--- a/src-web/components/responseViewers/MultipartViewer.tsx
+++ b/src-web/components/responseViewers/MultipartViewer.tsx
@@ -56,10 +56,10 @@ export function MultipartViewer({ data, boundary, idPrefix = 'multipart' }: Prop
       addBorders
       label="Multipart"
       layout="horizontal"
-      tabListClassName="border-r border-r-border"
-      tabs={parts.map((part) => ({
+      tabListClassName="border-r border-r-border -ml-3"
+      tabs={parts.map((part, i) => ({
         label: part.name ?? '',
-        value: part.name ?? '',
+        value: tabValue(part, i),
         rightSlot:
           part.filename && part.headers.contentType.mediaType?.startsWith('image/') ? (
             <div className="h-5 w-5 overflow-auto flex items-center justify-end">
@@ -77,7 +77,7 @@ export function MultipartViewer({ data, boundary, idPrefix = 'multipart' }: Prop
         <TabContent
           // biome-ignore lint/suspicious/noArrayIndexKey: Nothing else to key on
           key={idPrefix + part.name + i}
-          value={part.name ?? ''}
+          value={tabValue(part, i)}
           className="pl-3 !pt-0"
         >
           <Part part={part} />
@@ -115,7 +115,7 @@ function Part({ part }: { part: MultipartPart }) {
   }
 
   if (mimeType?.match(/csv|tab-separated/i)) {
-    return <CsvViewer text={content} />;
+    return <CsvViewer text={content} className="bg-primary h-10 w-10" />;
   }
 
   if (mimeType?.match(/^text\/html/i) || detectedLanguage === 'html') {
@@ -132,3 +132,7 @@ function Part({ part }: { part: MultipartPart }) {
 
   return <TextViewer text={content} language={detectedLanguage} stateKey={null} />;
 }
+
+function tabValue(part: MultipartPart, i: number) {
+  return `${part.name ?? ''}::${i}`;
+}