*, ::after, ::before {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
body {
  margin: 80px auto;
  padding: 0;
  width: 65%;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
}

strong {
  font-weight: bold;
}

.hidden {
  display: none;
}

input[class^="hidden"] {
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  z-index: -1;
}

.button {
  display: inline-block;
  cursor: pointer;
  margin: 5px;
  padding: 15px 25px;
  color: #FFF;
  background-color: #1E90FF;
  font-family: Tahoma, Geneva, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  border-radius: 3px;
}

input:disabled+label.button {
  background-color: #BBB;
  color: #EEE;
  cursor: not-allowed;
  opacity: .5;
}

.alert {
  position: fixed;
  top: 0;
  left: 0;
  margin: 0;
  width: 100%;
  text-align: center;
  padding: .75rem 1.25rem;
  background-color: #FCF8E3;
  border: 1px solid #FAF2CC;
  color: #8A6D3B;
}