main {
  position: relative;
  width: 100%;
  margin: 0;
}

/* shark image in the background */
/* main::after {
  content: "";
  display: block;
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  background: url(img/sharks/shark2.png);
  background-size: 100% auto;
  background-repeat: no-repeat;
  background-position: 50%;
  opacity: 0.03;
  z-index: 0;
} */

main .header-logo {
  position: relative;
  display: flex;
  top: 0;
  justify-content: center;
  width: 100vw;
  height: var(--logo-size);
  z-index: 3;
}

main .header-logo img {
  height: 100%;
  position: absolute;
  top: 0;
  transform: translate(0, -50%);
}