With CSS you can add shadow to text and to elements.
text-shadow
box-shadow
/* Text shadow */
h1 {
/* horizontal 3px, vertical 3px, blur 5px, color */
text-shadow: 3px 3px 5px rgba(0, 0, 0, 0.2);
}
/* Box shadow */
.box {
width: 800px;
height: 400px;
background: wheat;
/* set the shadow right in the center */
box-shadow: 0 0 30px grey;
}