@atlassian/aui/src/less/imports/aui-theme/components/spinner.less

Atlassian User Interface library

@aui-spinner-size-small: 20px;
@aui-spinner-size-medium: 30px;
@aui-spinner-size-large: 50px;

#aui {
    .spinner-stroke(@size) {
        stroke-dasharray: unit(@size * 2.8, px);
        stroke-dashoffset: unit(@size * 2.25, px);
        stroke-width: unit(@size / 10, px);
    }
}