CSS flexbox: The flex property in CSS is the combination of flex-grow, flex-shrink, and flex-basis property. It is used to set the length of flexible items. The flex property is much responsive and mobile friendly. It is easy to positioning child elements and the main container. The margin doesn’t collapse with the content margins. Order of any element can be easily changed without editing the HTML section. The flexbox was added to the CSS standards a few years ago to manage space distribution and element alignment. Basically it is one-dimensional layout syntax.
Vertical align to center: The flexbox property is used to set the content to vertical align. The text content can be aligned vertically by setting the following display properties:
align-items and justify-content are the important properties to absolutely center text horizontally and vertically. Horizontally centering is managed by the justify-content property and vertical centering by align-items property.
Example 1: This example set the text content vertically align to center.
Example 2: This example illustrates how to set left align text vertically in a flexbox using CSS.