body, html {
  margin: 0;
  padding: 0;
  font-family: "Roboto";
  width: 100%;
  height: 100%;
  background-color: #1a1a1a;
  font-size: 10px;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
}

* {
  box-sizing: border-box;
}

.matrix {
  width: 100vw;
  height: 100vh;
}