body #content1 #picture-label {
  display: block;
  background-color: white;
  width: 7em;
  height: 7em;
  border-radius: 100%;
  position: relative;
  margin: 15em auto 0;
  border: 1px solid rgba(0, 0, 0, 0.25);
}
body #content1 #picture-label:before {
  content: "";
  z-index: 0;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-color: black;
  -webkit-mask: url(../img/camera.svg) center no-repeat;
  -webkit-mask-size: 40%;
}
body #content1 .take-photo {
  text-align: center;
  margin-top: 1em;
  font-weight: bold;
  font-size: 1.25em;
  color: black;
  font-family: verdana;
}
body[step=step1] #content1 {
  transition: opacity 500ms ease, transform 500ms ease, z-index 0ms ease 0ms;
  z-index: 2;
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
body:not([step=step1]) #content1 {
  transition: opacity 250ms ease, transform 250ms ease, z-index 0ms ease 500ms;
  z-index: -1;
  opacity: 0;
  transform: translate3d(0, 2em, 0);
}