.page1 {
  background: url(img/banner.png) no-repeat center center;
  width: 100vw;
  height: 100vh;
  position: relative;
  /* filter: brightness(85%); */
  margin-bottom: 70px;
}

.page1::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(6, 33, 51, 0.3);
  z-index: 0;
}

.page2 {
  width: 100vw;
  height: 80vh;
}