/* This is the default css we need to give because by default browser gives some margin */
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

.container {
  min-height: 100vh;
  width: 100%;
  background: #181818;
  padding: 5rem;

  /* for container class i made display grid */
  display: grid;
  /* here i'm telling how many columns i want */
  grid-template-columns: 1fr 1fr 1fr;
  /*  gap will give a uniform space between the items inside grid  */
  gap: 1rem;
}

.item {
  height: 100%;
  width: 100%;
  background: #455ce9;
  border-radius: 0.5rem;
}