<div class="icon">👍🏽</div>

.icon {
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 0 white,
    -2px -2px 0 black,
    0px -2px 0 black,
    2px -2px 0 black,
    -2px 0 0 black,
    2px 0 0 black,
    -2px 2px 0 black,
    0 2px 0 black,
    2px 2px 0 black;
 }

body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  margin: 0;
}