html, body, .otree-body, form { height: 100%; }

.otree-body {
  position: relative;
}

.otree-body > h2 {
  position: absolute;
  top: 0;
  left: 0;
}

.otree-timer {
  position: absolute;
  top: 0;
  right: 0;
  margin-top: 40px;
  padding-top: 20px;
} 

.otree-timer p {
  margin: 0;
}

._otree-content {
  width: 100%;
  height: 100%;
  position: relative;
}

.overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

.overlay.left-side {
  right: 50%;
}

.overlay.right-side {
  left: 50%;
}

.main {
  flex: 1 1 100%;
  display: flex;
  flex-flow: column nowrap;
  justify-content: center;
  align-items: center;
} 

.bottom {
  height: 25vh;
  display: flex;
  flex-flow: column nowrap;
  justify-content: center;
  align-items: center;
}

.fullscreen {
  height: 100%;
  width: 100%;
}