* {
  box-sizing: border-box;
}

body {
  height: 100vh;
}

h1{
	text-align: center;
	margin-top: 20px;
}

.main{
	display: flex;
	flex-wrap: wrap;
	max-width:1100px;
	margin:auto
}

.main div{
	width: 33.3%;
}