html, body {
  background: #fff;
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: default;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  font-family: 'PT Sans', sans-serif;
}

.title {
  font-size: 10vw;
  font-weight: 700;
  text-align: center;
  margin-top: 15%;
  color: #444;
}

.subtitle {
  font-size: 4vw;
  color: #777;
  font-weight: normal;
  text-align: center;
  margin-top: 0;
}

.credit {
  position: absolute;
  bottom: 5px;
  width: 100%;
  display: block;
  text-align: center;
  color: #777;
}
.credit > a {
  color: #777;
}

.particle-count {
  display: block;
  text-align: center;
  margin: 25px 0;
}

.particles > .particle {
  border-radius: 100%;
  background: transparent;
  position: absolute;
  background-size: 100% 100%;
  background-repeat: no-repeat;
}
.particles > .particle.smaller {
  width: 5px;
  height: 5px;
}
.particles > .particle.small {
  width: 10px;
  height: 10px;
}
.particles > .particle.normal {
  width: 15px;
  height: 15px;
}
.particles > .particle.big {
  width: 20px;
  height: 20px;
}
.particles > .particle.bigger {
  width: 25px;
  height: 25px;
}