.semi-transparent-button {
  display: block;
  box-sizing: border-box;
  margin: 0 auto;
  padding: 8px;
  max-width: 160px;
  min-width: 120px;
  background: transparent; /* fallback color for old browsers */
  border-radius: 2px;
  color: #fff;
  text-align: center;
  text-decoration: none;
  letter-spacing: 1px;
  transition: all 0.1s ease-out;
}
.semi-transparent-button:hover,
.semi-transparent-button:active {
  background: #fff;
  color: #444;
  transition: all 0.1s ease-in;
}
.semi-transparent:focus {
  outline: none;
}

.is-blue {
  background: #1e348e; /* fallback color for old browsers */
  background: rgba(30, 52, 142, 0.5);
}
.is-blue:hover,
.is-blue:focus,
.is-blue:active {
  background: #1e348e; /* fallback color for old browsers */
  background: rgb(30, 52, 142);
  color: #fff;
}

.with-border {
  border: 1px solid #fff;
}

.white-button {
  color: #222;
  border: 1px solid #222;
  min-width: 110px;
}

.white-button:hover {
  color: #fff;
  background: #222;
  cursor: pointer;
}

.white-button-hover {
  color: #fff;
  background: #222;
  cursor: pointer;
}