body{
  margin:0;
  text-align:center;
  font-family:sans-serif;

  min-height: 100vh;
  background-image: url('/image/bg.png');
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
}

body {
  margin: 0;
  min-height: 100vh;

  display: flex;
  flex-direction: column;
}

.screen-img {
  max-width: 50%;
  margin: 0 auto;
}

h1 {
  margin: 0;
  padding: 15px;
}
h3 {
  margin: 0;
  margin-bottom: 15px;
}

button{
  padding:10px 18px;
  border:1px solid #000;
  border-radius:6px;
  background:#e6e6e6;
  color:#000;
  font-size:14px;
  cursor:pointer;
}

button:hover{
  background:#e0e0e0;
}

button:active{
  background:#c0c0c0;
}

.previous{
  position:fixed;
  bottom:10px;
  left:10px;
}

.next{
  position:fixed;
  bottom:10px;
  right:10px;
}

.vote-cloud {
  position: relative;
  flex: 1;
  margin: 20px auto;
  width: 80%;
  min-height: 10vh;
  background: #e6e6e6;
  border: 6px solid red;
  border-radius: 40px;
  overflow: hidden;
}

.vote-item {
  position: absolute;
  pointer-events: none;
  user-select: none;
  line-height: 1;
  white-space: nowrap;
  text-shadow: 0 1px 0 rgba(255,255,255,0.35);
  transform: translate(-50%, -50%);
  transition:
    left 800ms cubic-bezier(.2,.8,.2,1),
    top 800ms cubic-bezier(.2,.8,.2,1),
    font-size 800ms cubic-bezier(.2,.8,.2,1),
    font-weight 800ms cubic-bezier(.2,.8,.2,1),
    opacity 400ms ease,
    color 400ms ease,
    transform 800ms cubic-bezier(.2,.8,.2,1);
  will-change: left, top, transform, opacity, font-size;
}