diff --git a/framework/sdk-parent/frontend/src/utils/index.js b/framework/sdk-parent/frontend/src/utils/index.js
index 71db1b948e..3b278d4350 100644
--- a/framework/sdk-parent/frontend/src/utils/index.js
+++ b/framework/sdk-parent/frontend/src/utils/index.js
@@ -296,18 +296,18 @@ export function handleCtrlSEvent(event, func) {
 
 export function byteToSize(bytes) {
   if (bytes === 0) {
-    return "0 B";
+    return "0B";
   }
   let k = 1024,
-    sizeUnits = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"],
+    sizeUnits = ["B", "K", "M", "G", "T", "P", "E", "Z", "Y"],
     i = Math.floor(Math.log(bytes) / Math.log(k));
 
-  return Math.round(bytes / Math.pow(1024, i)).toFixed(1) + " " + sizeUnits[i];
+  return Math.round(bytes / Math.pow(1024, i)).toFixed(1) + sizeUnits[i];
 }
 
 export function sizeToByte(size) {
   let k = 1024,
-    sizeUnits = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
+    sizeUnits = ["B", "K", "M", "G", "T", "P", "E", "Z", "Y"];
   let i = 1;
   for (i++; i < sizeUnits.length;) {
     let unit = sizeUnits[i];
diff --git a/test-track/frontend/src/business/case/components/case/CaseAttachmentItem.vue b/test-track/frontend/src/business/case/components/case/CaseAttachmentItem.vue
index eed31103ff..10f23a67d6 100644
--- a/test-track/frontend/src/business/case/components/case/CaseAttachmentItem.vue
+++ b/test-track/frontend/src/business/case/components/case/CaseAttachmentItem.vue
@@ -163,7 +163,7 @@ export default {
   computed: {
     uploadSize() {
       if (this.fileItem.progress === 0) {
-        return '0 B'
+        return '0B'
       }
       if (this.fileItem.progress === 100) {
         return this.fileItem.size;
@@ -363,7 +363,7 @@ export default {
       margin-top: px2rem(11.5);
       margin-left: px2rem(12.67);
       width: px2rem(37);
-      margin-right: px2rem(14.67);
+      margin-right: px2rem(8);
       img {
         width: 100%;
         /* height: 100%; */
@@ -405,7 +405,7 @@ export default {
       }
       .file-info-row {
         display: flex;
-        font-size: 12px;
+        font-size: px2rem(12);
         line-height: px2rem(20);
         height: px2rem(20);
         color: #8f959e;
@@ -445,7 +445,7 @@ export default {
       }
 
       .opt-item {
-        margin-right: 20px;
+        margin-right: px2rem(14);
         cursor: pointer;
       }
       .download {