982400: Part 5 - Check code snippet and make preview sample in blazor platform

Author: NithyaSivaprakasam

blazor/gantt-chart/how-to/customize-expand-collapse-icon.md

@@ -13,6 +13,7 @@ In the Gantt Chart component, you can customize the expand and collapse icons by
 
 {% tabs %}
 {% highlight razor tabtitle="Index.razor" %}
+
 @using Syncfusion.Blazor.Gantt
 <SfGantt DataSource="@TaskCollection" Height="450px" Width="1000px" HighlightWeekends="true"
          Toolbar="@(new List<string>(){ "Add", "Edit", "Update", "Delete", "Cancel", "ExpandAll", "CollapseAll", "Indent", "Outdent"})"