*, body * {
  margin: 0;
  padding: 0;
  font-family: serif;
  box-sizing: border-box !important;
  -webkit-box-sizing: border-box !important;
  -moz-box-sizing: border-box !important;
  -webkit-touch-callout: none;
    -webkit-user-select: none;
     -khtml-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
}

body {
  color: white;
  background-color: #212121;
  margin-bottom: 100px;
}