body {
  display: block;
  margin: 0;
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}
h1 {
  margin: 0 auto 30px;
  color: #ffffff;
  font-size: 120px;
  font-weight: 400;
  font-family: "Londrina Sketch", sans-serif;
}

p {
  color: #ffffff;
  font-family: "Open Sans", sans-serif;
  font-size: 16px;
  font-weight: 300;
}

footer {
  margin-top: auto;
  text-align: center;
}
footer p {
  color: #ffffff;
  font-size: 10px;
}

.o-wrapper {
  text-align: center;
}

.o-header {
  margin: 30px auto 70px;
}
@media only screen and (max-width: 480px) {
  .o-header {
    margin: 30px auto 50px;
  }
}

.o-logo {
  width: 250px;
  margin: 0 auto;
  color: #ffffff;
}

.o-body {
  padding: 20px;
}
.o-body p {
  font-family: "Open Sans", sans-serif;
  font-size: 21px;
  font-weight: 300;
  max-width: 550px;
  margin: 0 auto 30px;
  color: #ffffff;
}

a {
  color: #740096;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.o-button-fun {
  font-family: "Londrina Sketch", sans-serif;
  font-weight: 400;
  color: #ffffff;
  font-size: 55px;
  padding: 10px 20px;
  cursor: pointer;
}
.o-button-fun:hover {
  background: #740096;
  text-decoration: none;
  padding: 10px 20px;
  cursor: pointer;
}