style.css

.container {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.bottom {
  display: flex;
  justify-content: space-between;
  /* align-content: flex-start; */
}

.bottom a img {
  width: 15%;
}

.bottom a:nth-child(2) {
  display: flex;
  justify-content: flex-end;
}

.top a {
  display: flex;
  justify-content: flex-end;
}

.top a img {
  width: 4%;
  text-align: center;
}
#bg {
  width: 100%;
  height: 100%;
  z-index: -1;
}
.gif {
  margin-top: 0px;
  display: block;
  text-align: center;
  margin-left: 600px;
  margin-right: 550px;
  width: 250px;
  height: 250px;
  border-radius: 50px;
}
audio {
  display: none;
}

.main {
  position: relative;
  width: 80%;
  height: 80vh;
  padding: 0 8%;
}

.main p {
  width: 65%;
  /* height: 90%; */
  font-size: 2.15em;
  line-height: 1.75;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 18%;
  padding-top: 11%;
}
button {
  font-size: 2em;
  line-height: 1.75;
  text-align: center;
  margin-left: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back {
  position: fixed;
  width: 95%;
  margin: 0;
  padding: 0;
  height: 95%;
  opacity: 0.5;
}

.twoChoices {
  display: flex;
  flex-direction: column;
}

.twoChoices a:nth-child(1),
.twoChoices a:nth-child(2) {
  display: flex;
  justify-content: flex-end;
}