body {
  margin: 0;
  color: #333333;
  background: radial-gradient(circle 75vh, #FFFBF9, #ECE9E6);
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

section {
  background: no-repeat center center url(../img/logo.png);
  background-size: 356px auto;
  width: 100vw;
  height: 100vh;
  text-align: center;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  position: relative;
  max-width:100%;
}

h1 {
  position: absolute;
  top: -9999px;
  left: -9999px;
}
.head {
  font-size: 2em;
  font-weight: bold;
}

.body {
  font-size: 1em;
  margin-top: 1em;
  opacity: 0.8;
  width: 50%;
  line-height: 1.44em;
  max-width: 400px;
}