Editable table with Bootstrap 4, with multiple controls, having: Checkbox for ...
A nice Bootstrap 4 numeric spinner used on Input box Originally from
Set of 34 animated gifs as preloaders (or spinners)
Windows progress preloader in JS From
Windows preloader in CSS3, neat, right? From
CSS Spin ball, circle or loader
CSS-only spinners, 10 of them
CSS spinner, loader
Nice simple CSS loading spinner
Spinning circle in pure css Link
Spinning colors loader in CSS/JS
50 chars max.