best border shadow for black code example
Example: css perfect box shadow
.blog-shadow-dreamy {
box-shadow: 0 1px 2px rgba(0,0,0,0.07),
0 2px 4px rgba(0,0,0,0.07),
0 4px 8px rgba(0,0,0,0.07),
0 8px 16px rgba(0,0,0,0.07),
0 16px 32px rgba(0,0,0,0.07),
0 32px 64px rgba(0,0,0,0.07);
}