Sombra da caixa interna
div {
box-shadow: inset 0 0 10px #000000;
}
Dark Dolphin
div {
box-shadow: inset 0 0 10px #000000;
}filter: drop-shadow(0px 10px 3px black);.yourElement {
/* offset-x | offset-y | blur-radius | spread-radius | color */
-webkit-box-shadow: -2px -1px 15px 7px rgba(0,0,0,0.5);
-moz-box-shadow: -3px -2px 30px 14px rgba(0,0,0,0.425);
box-shadow: -4px -3px 45px 21px rgba(0,0,0,0.35);
}/* CSS box shadow look like paper lift up*/
/* provide shadow to all four corners */
/* source - W3Schools.com */
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);filter: drop-shadow(30px 10px 4px #4444dd);
drop-shadow(offset-x offset-y blur-radius color)#example1 {
box-shadow: 10px 10px 8px #888888;
}