Promo Hero

.promo-hero {
  width: 100%;
  text-align: center;
  height: 420px;
  background: #8a8a8a;
  position: relative;
  color: white;
}

.promo-hero .button.white-hollow {
  border: 1px solid #fefefe;
  color: #fefefe;
  background-color: transparent;
  transition: border 0.5s ease;
}

.promo-hero .button.white-hollow:hover, .promo-hero .button.white-hollow:active, .promo-hero .button.white-hollow:focus {
  border: 1px solid #b2b2b2;
  transition: border 0.5s ease;
}

.promo-hero-content {
  z-index: 10;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
      transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
}

.promo-hero-title {
  line-height: 1.25em;
  margin-bottom: 1rem;
}

.promo-hero-description {
  margin-bottom: 1rem;
}

.promo-hero-bg-image {
  overflow: hidden;
  background-image: url(https://placehold.it/2000x900);
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
}

.promo-hero-bg-image:before {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  position: relative;
  z-index: 1;
}