style.css

body {
  background: #342e37;
}

.container {
  padding-top: 30px;
}

h1 {
  color: #fff;
  font-family: "Space Mono", monospace;
  font-size: 3rem;
  text-align: center;
  font-weight: 300;
}

img {
  max-width: 80%;
  margin-bottom: 2rem;
  display: block;
  margin-inline: auto;
  border-radius: 50%;
  -webkit-box-shadow: 2px 0px 14px 7px rgba(255, 255, 255, 0.75);
  -moz-box-shadow: 2px 0px 14px 7px rgba(255, 255, 255, 0.75);
  box-shadow: 2px 0px 14px 7px rgba(255, 255, 255, 0.75);
  @media screen and (min-width: 768px) {
    max-width: 40%;
  }
}

form {
  padding: 30px;
}

.btn {
  outline: none;
  border: none;
  cursor: pointer;
  display: block;
  position: relative;
  background-color: #676264;
  padding: 20px 80px;
  margin: 0 auto;
  border-radius: 20px;
  box-shadow: 0 6px #2e282a;
  margin-bottom: 3rem;
}

.btn a {
  color: white;
  font-family: "Open Sans", sans-serif;
  font-size: 1rem;
  font-weight: 300;
  text-transform: uppercase;
  text-decoration: none;
  letter-spacing: 2px;
}

.btn:hover {
  box-shadow: 0 4px #2e282a;
  top: 2px;
}

.btn:active {
  box-shadow: none;
  top: 6px;
}