canvas {
  display: block;
  vertical-align: bottom;
} 
#particles-js {
  position: absolute;
  width: 100%;
  height: 100vh;
  background-color: #1e1f26;
  background-size: cover;
  background-position: 50% 50%;
} 

.js-count-particles {
  font-size: 1.1em;
}