Customize progress using cssClass in Blazor Progress Button component

You can customize the background filler UI using the CssClass property.

Adding e-vertical to CssClass shows vertical progress.
Adding e-progress-top to CssClass shows progress at the top.

You can also show reverse progress by adding custom class to the CssClass property.

@using Syncfusion.Blazor.SplitButtons

<SfProgressButton EnableProgress="true" CssClass="e-hide-spinner e-vertical" Duration="4000" Content="Vertical Progress"></SfProgressButton>
<SfProgressButton EnableProgress="true" CssClass="e-hide-spinner e-progress-top" Duration="4000" Content="Progress Top"></SfProgressButton>
<SfProgressButton EnableProgress="true" CssClass="e-hide-spinner e-reverse-progress" Duration="4000" Content="Reverse Progress"></SfProgressButton>

<style>
    .e-reverse-progress .e-progress {
        right: 0;
        left: auto;
    }
</style>

Output be like

Please provide additional information

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