Bootstrap “spinners” can be used to show the loading state in your projects. They’re built only with HTML and CSS, meaning you don’t need any JavaScript to create them. You will, however, need some custom JavaScript to toggle their visibility. Their appearance, alignment, and sizing can be easily customized with our amazing utility classes.
For accessibility purposes, each loader here includes role="status" and a nested <span class="sr-only">Loading...</span>.
Border spinner
Use the border spinners for a lightweight loading indicator.
The border spinner uses currentColor for its border-color, meaning you can customize the color with [text color utilities][color]. You can use any of our text color utilities on the standard spinner.
Once again, this spinner is built with currentColor, so you can easily change its appearance with [text color utilities][color]. Here it is in blue, along with the supported variants.
Spinners in Bootstrap are built with rems, currentColor, and display: inline-flex. This means they can easily be resized, recolored, and quickly aligned.
Margin
Use [margin utilities][margin] like .m-5 for easy spacing.
Use [flexbox utilities][flex], [float utilities][float], or [text alignment][text] utilities to place spinners exactly where you need them in any situation.
Use spinners within buttons to indicate an action is currently processing or taking place. You may also swap the text out of the spinner element and utilize button text as needed.