html, body {
  height: 100%;
}

body {
  font: normal 1em Arial, sans-serif;
  background: linear-gradient(rgb(16,16,16),rgb(64,64,64));
}

.layout {
  width: 100%;
  display: flex;
  gap: 16px;
  margin: 16px
}

.grow1 {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}