shadow to the button code example

Example 1: box-shadow css

/* Keyword values */
box-shadow: none;

/* offset-x | offset-y | color */
box-shadow: 60px -16px teal;

/* offset-x | offset-y | blur-radius | color */
box-shadow: 10px 5px 5px black;

/* offset-x | offset-y | blur-radius | spread-radius | color */
box-shadow: 2px 2px 2px 1px rgba(0, 0, 0, 0.2);

/* inset | offset-x | offset-y | color */
box-shadow: inset 5em 1em gold;

/* Any number of shadows, separated by commas */
box-shadow: 3px 3px red, -1em 0 0.4em olive;

/* Global keywords */
box-shadow: inherit;
box-shadow: initial;
box-shadow: unset;

Example 2: box shadow

/*// https://html-css-js.com/css/generator/box-shadow
--------------------------------------------------------------*/
-webkit-box-shadow: 5px 5px 15px 5px #000000;
   -moz-box-shadow: 5px 5px 15px 5px #000000;
		box-shadow: 5px 5px 15px 5px #000000;

/*//        offset-x | offset-y | blur-radius | spread-radius | color
box-shadow: 5px        5px       15px           5px             #000000;
--------------------------------------------------------------*/