<div class="icon">
  <img src="https://img.icons8.com/color/48/000000/cloudflare.png">
</div>

.icon{
  padding: 10px;
  border-radius: 50%;
  background-color: red;
  display: inline-block;
  -webkit-box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.75);
  -moz-box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.75);
  box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.75);
  text-align: center;
}
.icon img{
  width: 40px;
  height: 40px;
}