body {  
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

.demo-wrapper {
  box-sizing: border-box;
  width: 800px;
  max-width: calc(100% - 30px);
  margin: auto;
  padding: 30px 0 0;
}

.demo-container {
  padding: 0 0 80px;
}