While dinking around on my father's website I discovered that you can add the radius characteristic to shadow. So I have a calendar inside a div, both have rounded edges (0.7em to be exact) and I wanted to add a drop shadow to it, but those almost always have a square edge and as such would clash with my rounded edges. Just messing around with box-shadow attribute and decide what if I add radius to it? So I did. Can't find anywhere online that mentions this technique so I might have discovered something unique. Anyways enough back story here's the codes:
CSS:
box-shadow-bottom-right-radius: 0.7em; //you can enter whatever value you want
box-shadow-bottom-left-radius: 0.7em;
box-shadow-top-right-radius: 0.7em;
box-shadow-top-left-radius: 0.7em;
There you go so you're adding a radius to the box shadow itself like you would normally do to a border.