Understanding align-items and How It Works:
The align-items property is a powerful CSS feature that controls how flex items are positioned along the cross axis of a flex container. This property is especially useful for aligning items when they have different heights or when the container has more space than needed. Values of align-items: 
flex-start  – Items are aligned at the start of the cross axis. 
flex-end  – Items are aligned at the end of the cross axis. 
center  – Items are centered along the cross axis. 
baseline   – Items are aligned based on their text baseline. 
stretch   – Items are stretched to fill the container’s height (if no height is set). 
Understanding align-items and How It Works:
The align-items property is a powerful CSS feature that controls how flex items are positioned along the cross axis of a flex container. This property is especially useful for aligning items when they have different heights or when the container has more space than needed. Values of align-items: 
flex-start  – Items are aligned at the start of the cross axis. 
flex-end  – Items are aligned at the end of the cross axis. 
center  – Items are centered along the cross axis. 
baseline   – Items are aligned based on their text baseline. 
stretch   – Items are stretched to fill the container’s height (if no height is set).