how to vertically center an item html css code example

Example 1: center elements vertically in div

.container {        
    display: flex;
    align-items: center;
}

Example 2: css center vertically

/* 100vh = 100% Viewport Height */
body {
	display: flex;
	height: 100vh;
	flex-direction: column;
	justify-content: center;
}
/* add */ align-items: center; /*to also center horizontally.*/