Check out example codes for "border shadow css". It will help you in understanding the concepts better.

Code Example 1

#example1 {
  box-shadow: 10px 10px 8px #888888;
}

Code Example 2

box-shadow: 0 0 10px;

Code Example 3

div.card
{

  width: 250px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 
0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  text-align: 
center;

}

Code Example 4

/* 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;

Code Example 5

<!Doctype>
<html>
<head>
  <style>
    .img {
      width: 400px;
      height: 200px;
      border:2px solid #fff;
      background: url(img/tiger.png) no-repeat;
      box-shadow: 10px 10px 5px #ccc;
      -moz-box-shadow: 10px 10px 5px #ccc;
      -webkit-box-shadow: 10px 10px 5px #ccc;
      -khtml-box-shadow: 10px 10px 5px #ccc;
    }
  </style>
</head>
<body>
  <div class="img"></div>
</body>
</html>

Code Example 6

Source:www.w3schools.com
0
image shadow cssCSS By Ankur on May 1 2020 Donate
<!Doctype>
<html>
<head>
  <style>
    .img {
      width: 400px;
      height: 200px;
      border:2px solid #fff;
      background: url(img/tiger.png) no-repeat;
      box-shadow: 10px 10px 5px #ccc;
      -moz-box-shadow: 10px 10px 5px #ccc;
      -webkit-box-shadow: 10px 10px 5px #ccc;
      -khtml-box-shadow: 10px 10px 5px #ccc;
    }
  </style>
</head>
<body>
  <div class="img"></div>
</body>
</html>

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