.button {
  display: inline-block;
  vertical-align: top;
  position: relative;
  overflow: hidden;
  min-width: 96px;
  line-height: 46px;
  padding: 0 24px;
  font-size: 14px;
  color: white;
  text-align: center;
  text-decoration: none;
  text-shadow: 0 1px #154c86;
  background-color: #247edd;
  background-clip: padding-box;
  border: 1px solid;
  border-color: #1c65b2 #18589c #18589c;
  border-radius: 4px;
  -webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.4), 0 1px 2px rgba(0, 0, 0, 0.2);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.4), 0 1px 2px rgba(0, 0, 0, 0.2);
  background-image: -webkit-linear-gradient(top, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.12) 51%, rgba(0, 0, 0, 0.04));
  background-image: -moz-linear-gradient(top, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.12) 51%, rgba(0, 0, 0, 0.04));
  background-image: -o-linear-gradient(top, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.12) 51%, rgba(0, 0, 0, 0.04));
  background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.12) 51%, rgba(0, 0, 0, 0.04));
}
.button:before {
  content: '';
  position: absolute;
  top: -25%;
  bottom: -25%;
  left: -20%;
  right: -20%;
  border-radius: 50%;
  background: transparent;
  -webkit-box-shadow: inset 0 0 38px rgba(255, 255, 255, 0.5);
  box-shadow: inset 0 0 38px rgba(255, 255, 255, 0.5);
}
.button:hover {
  background-color: #1a74d3;
}
.button:active {
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 -1px #154c86;
  background: #1f71c8;
  border-color: #113f70 #154c86 #1c65b2;
  -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px rgba(255, 255, 255, 0.4);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px rgba(255, 255, 255, 0.4);
  background-image: -webkit-linear-gradient(top, #1a5da5, #3a8be0);
  background-image: -moz-linear-gradient(top, #1a5da5, #3a8be0);
  background-image: -o-linear-gradient(top, #1a5da5, #3a8be0);
  background-image: linear-gradient(to bottom, #1a5da5, #3a8be0);
}
.button:active:before {
  top: -50%;
  bottom: -125%;
  left: -15%;
  right: -15%;
  -webkit-box-shadow: inset 0 0 96px rgba(0, 0, 0, 0.2);
  box-shadow: inset 0 0 96px rgba(0, 0, 0, 0.2);
}

.button-yellow {
  text-shadow: 0 1px #6F5500;
  background-color: #BC9108;
  border-color: #6F5500 #6F5500 #6F5500;
}
.button-yellow:hover {
  background-color: #F3CC4E;
}
.button-yellow:active {
  text-shadow: 0 -1px #6F5500;
  background: #F3CC4E;
}