@charset "utf-8";
/* CSS Document */

.span-shadow {text-align:center}
.span-shadow span {
  display: inline-block;
  margin: 10px;
  padding: 10px 10px;
  cursor: pointer;
  border-radius: 10px;
  color: black;
  transition: .2s linear;
}

.span-shadow span {background:#B0FFC0}
.span-shadow span:hover { 
  box-shadow: 0 0 0 2px #B0FFC0 inset, 0 0 0 4px white inset;
}