My Four Card Feature Section Solution Using Grid

I Used This:

box-shadow: -5px 0px 10px rgba(128, 128, 128, 0.15), 5px 5px 10px rgba(128, 128, 128, 0.15);

Give all of your cards a same class, for example card. Your css code should be like this:

.card {
    box-shadow: -5px 0px 10px rgba(128, 128, 128, 0.15), 5px 5px 10px rgba(128, 128, 128, 0.15);
}

You can see my solution and If you liked it then, use it.

there is a property call box shadow. with that you will be able to bring shadow to your design.

yourcard {
  box-shadow: 5px 10px rgba(255,255,255,.1);
}

i hope this might helped you