a{
    -webkit-transition: color 0.2s; /* For Safari 3.0 to 6.0 */
    transition: color 0.2s; /* For modern browsers */
}
a:hover {
    color: rgb(140,100,210);
}

.button {
  border-radius: 2px;
  background-color: white;
  border: none;
  color: rgb(31,31,31);
  text-align: center;
  font-size: 14px;
  padding: 15px;
  width: 330px;
  transition: all 0.4s;
  cursor: pointer;
  margin: 5px;
  font-family: FontsFree-Net-Lulo-Clean-W01-One-Bold;
}

.button span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.button span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  right: -20px;
  transition: 0.5s;
}

.button:hover span {
  padding-right: 25px;
}

.button:hover span:after {
  opacity: 1;
  right: 0;
}