| Index: Source/devtools/front_end/TimelineOverviewPane.js | 
| diff --git a/Source/devtools/front_end/TimelineOverviewPane.js b/Source/devtools/front_end/TimelineOverviewPane.js | 
| index fd9c6e8e51d534750a4de8bba4de194203985dd8..7d0765b1a63626299a248ecf271d23dcc596aa8b 100644 | 
| --- a/Source/devtools/front_end/TimelineOverviewPane.js | 
| +++ b/Source/devtools/front_end/TimelineOverviewPane.js | 
| @@ -48,7 +48,7 @@ WebInspector.TimelineOverviewPane = function(model) | 
| this._topPaneSidebarElement.id = "timeline-overview-sidebar"; | 
|  | 
| var overviewTreeElement = document.createElement("ol"); | 
| -    overviewTreeElement.className = "sidebar-tree"; | 
| +    overviewTreeElement.className = "sidebar-tree vbox"; | 
| this._topPaneSidebarElement.appendChild(overviewTreeElement); | 
| this.element.appendChild(this._topPaneSidebarElement); | 
|  | 
|  |