Did you ever wonder if there was an easy way to create a drop shadow around an image so that it stood out? Well, yes, there is, and in WordPress it is very easy.
Most themes provide the ability to add additional CSS. To check, go to to the dashboard and select Appearance > Customize:
Find “Additional CSS” at the bottom of the list.
Enter the CSS code in the field:
box-shadow: 10px 10px 5px grey;
And, there you have it! You can even change the dimensions and even direction of the shadow as required, should you wish to customize.