style.css

#app {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 100vh;
  animation: colorChanger 5s linear 2s infinite alternate;
}

@keyframes colorChanger {
  from {
    background-color: white;
  }
  to {
    background-color: rgb(235, 233, 226);
  }
}

.container {
  width: 500px;
  height: 500px;
  background-color: rgb(235, 233, 226);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% {
    box-shadow: 0 10px 20px 0px rgba(0, 0, 0, 0.6);
    transform: translatey(3px);
  }
  50% {
    box-shadow: 0 25px 20px 0px rgba(0, 0, 0, 0.2);
    transform: translatey(-30px);
  }
  100% {
    box-shadow: 0 10px 20px 0px rgba(0, 0, 0, 0.6);
    transform: translatey(3px);
  }
}

img {
  margin-top: 80px;
  border-radius: 20%;
  border: 2px black solid;
}

h1,
h3 {
  font-family: sans-serif;
  word-spacing: normal;
  margin-bottom: 10px;
  margin-top: 2px;
  align-items: center;
}
button {
  width: 150px;
  height: 60px;
  border-radius: 20px;
  font-weight: 900;
}

.female {
  border-color: palevioletred;
  color: rgb(247, 130, 149);
}
.male {
  border-color: blue;
  color: rgb(107, 107, 252);
}

@media screen and (max-width: 600px) {
  .container {
    flex-direction: column;
    width: 300px;
    height: 500px;
  }
  .email {
    flex-direction: column;
    font-size: 15px;
  }
}