Use class .spinner-border for a lightweight loading indicator.

You can customize the color with text color utilities. You can use any of our text color utilities on the standard spinner. Use .text-{color}

Use class .spinner-grow for a growing spinner.

You can customize the color with text color utilities. You can use any of our text color utilities on the standard spinner. Use .text-{color}

Use Flexbox utilities to place spinners.Use .d-flex and .align-items-{side}.

You can also use Float to place your spinner .float-{side}.

You can also use .text-{side} for your spinner's placement.

Use .spinner-border-sm and .spinner-grow-sm for small sized spinner. For large spinner, you need to add inline style.