background-color: #CCC; font-family: system-ui; display: flex; flex-direction: column; justify-content: center; align-items: center; min-height: 85vh; #carte { border: 1px solid black; background-color: white; aspect-ratio: 1.41/1; width: 20em; border-radius: 0.5rem; box-shadow: 0 0 3rem grey; } h1 { font-size: 1.5rem; margin: 1rem; font-weight: 400; }