Styles in Blazor Floating Action Button Component

3 Aug 20233 minutes to read

This section explains the different styles of Floating Action Button.

FAB styles

The Blazor Floating Action Button supports the following predefined styles that can be defined using the CssClass property. You can customize by replacing the CssClass property with the below defined class.

Class Description
e-success Used to represent a positive action.
e-outline Used to represent an appearance of button with outline.
e-info Used to represent an informative action.
e-warning Used to represent an action with caution.
e-danger Used to represent a negative action.
@using Syncfusion.Blazor.Buttons

<SfFab CssClass="e-warning" IconCss="e-icons e-edit"></SfFab>

Blazor FAB Component with Styles


Predefined Floating Action Button styles provide only the visual indication. So, Floating Action Button Content property should define the Floating Action Button style for the users of assistive technologies such as screen readers.

Styles customization

To modify the Floating Action Button appearance, you need to override the default CSS of Floating Action Button component. Please find the list of CSS classes and its corresponding section in Floating Action Button component. Also, you have an option to create your own custom theme for the controls using our Theme Studio.

CSS Class Purpose of Class
.e-fab.e-btn To customize the FAB.
.e-fab.e-btn:hover To customize the FAB on hover.
.e-fab.e-btn:focus To customize the FAB on focus.
.e-fab.e-btn:active To customize the FAB on active.
.e-fab .e-btn-icon To customize the style of FAB icon.

Show text on hover

By using CssClass, you can customize the Floating Action Button to show text on hover with applied transition effect.

@using Syncfusion.Blazor.Buttons

<SfFab IconCss="e-icons e-edit" CssClass="fab-hover"><span class="text-container"><span class="textEle">Edit</span></span></SfFab>


    .e-fab.e-btn.fab-hover {
        padding: 6px 2px 8px 10px;

    .fab-hover .text-container {
        overflow: hidden;
        width: 0;
        margin: 0;
        transition: width .5s linear 0s, margin .2s linear .5s;

    .fab-hover:hover .text-container {
        width: 25px;
        transition: width .5s linear .2s, margin .2s linear 0s;


Blazor FAB Component with Hover