diff --git a/src/js-components/previewBar.ts b/src/js-components/previewBar.ts
index a98800ba..94d8a176 100644
--- a/src/js-components/previewBar.ts
+++ b/src/js-components/previewBar.ts
@@ -366,6 +366,7 @@ class PreviewBar {
             section.style.marginRight = "2px";
             section.style.width = `calc(${this.timeToPercentage(duration)} - 2px)`;
         } else {
+            section.style.marginRight = "0";
             section.style.width = this.timeToPercentage(duration);
         }
         section.setAttribute("decimal-width", String(this.timeToDecimal(duration)));