Cheat Sheet CSS

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

.grid-3x1fr {
  display:  grid;
  grid-gap: 16px;
  grid-template-columns: 1fr 1fr 1fr;
}

.container{
  display: grid;
  grid-template-columns: minmax(14rem, 30%) 1fr;
}

* { box-sizing: border-box !important; outline: 3px solid limegreen !important}