View source for Template:IntroButton/styles.css

.intro-button {
  display: inline-flex;
  align-items: center;
  background: rgba(10,10,10,0.75);
  border: 1px solid rgba(120,165,255,0.2);
  border-radius: 10px;
  padding: 6px 12px;
  margin-right: 10px;
  transition: all .25s ease;
}
.intro-button a {
  color: #FAB243;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-decoration: none;
}
.intro-button:hover {
  border-color: #78A5FF;
  background: #1c1e25;
  transform: translateY(-2px);
}