html {

}

body {
  align-items: center;
  justify-content: center;
  background-color: #FFFFFF;
  display: flex;
  font-family: -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen-Sans,
    Ubuntu,
    Cantarell,
    "Helvetica Neue",
    sans-serif;
}

/* general styling */
:root {
  --smaller: .75;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width:100vw;
  height: 100vh;
  margin: 0;
}

body {
  align-items: center;
  background-color: #FFF;
  background-alpha: 0.3;
  color: #FFFFFF;

}

h1 {
  font-weight: normal;
  letter-spacing: .125rem;
  text-transform: uppercase;
}

li {
  display: inline-block;
  font-size: 1.5em;
  list-style-type: none;
  padding: 1em;
  text-transform: uppercase;
}

li span {
  display: block;
  font-size: 4.5rem;
}

.emoji {
  display: none;
  padding: 1rem;
}

.emoji span {
  font-size: 4rem;
  padding: 0 .5rem;
}

@media all and (max-width: 768px) {
  h1 {
    font-size: calc(1.5rem * var(--smaller));
  }

  li {
    font-size: calc(1.125rem * var(--smaller));
  }

  li span {
    font-size: calc(3.375rem * var(--smaller));
  }
}
<!--   box-shadow:
         12px 12px 16px 0 rgba(255, 255, 255, 0.3),
         -8px -8px 12px 0 rgba(0, 0, 0, 0.25); !-->

.raised-container {
  align-items: center;
  background-color: #000000;
  border-radius: 40px;
  display: flex;
  justify-content: center;
  margin: 4rem;
  width:90vw;
  height: 150;
  text-align: center;
}

.melissas {
    position: fixed;
    height: 100vh;
    width: 100vw;
    z-index: -1;
}

#melissa-1 {
  position: fixed;
  width: 8vw;
  left: 20vw;
  top: 30vh;
}

#melissa-2 {
  position: fixed;
  width: 9vw;
  left: 71vw;
  top: 30vh;
}

#melissa-3 {
  position: fixed;
  width: 10vw;
  left: 45vw;
  top: 20vh;
}

.dance {
  animation: rotation 1s infinite;
  animation-direction: alternate;
  animation-timing-function: ease;
}

@keyframes rotation {
  from {
    transform: rotate(-45deg);
  }
  to {
    transform: rotate(45deg);
  }
}

@keyframes cowmove{
    0% {
      transform: translateX(100px) rotateY(0deg);
    }
    49% {
      transform: translateX(500px) rotateY(0deg);
    }
    50% {
      transform: translateX(500px) rotateY(360deg);
    }
    100% {
      transform: translateX(100px) rotateY(360deg);
    }
}

#background-video {
    position:fixed;
    z-index: -1;
}
@media (min-aspect-ratio: 16/9) {
    #background-video {
        width:100%;
        height: auto;
    }
}
@media (max-aspect-ratio: 16/9) {
    #background-video {
        width:auto;
        height: 100%;
    }
}