html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: Helvetica, Arial, sans-serif;
  font-size: 2em;
  font-weight: 1em;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: black;
}

.text-div {
  background: red;
}

.grid-container {
  /* box-shadow: inset 0 0 0 1px black; */
  background: gray;
}