comment of good detail overflow

@@ -4,6 +4,12 @@
             border-bottom: 1px solid $borderC;
             padding: 0 pxToRem(28px);
             .user-name {
+                display: inline-block;
+                float: left;
+                max-width: 9rem;
+                overflow: hidden;
+                text-overflow: ellipsis;
+                white-space: nowrap;
                 font-size: pxToRem(24px);
                 line-height: pxToRem(62px);
                 color: $mainFontC;