CSS Properties: How to align item flex-start at the beginning of the container?

Last update on February 15 2024 06:20:29 (UTC/GMT +8 hours)

Solution:

HTML Code:

<!DOCTYPE html><!-- Define document type as HTML -->
<html><!-- Begin HTML document -->
<head><!-- Start of document header -->
<meta charset="utf-8"><!-- Specify character encoding -->
<title>How to align item flex-start at the beginning of the container</title><!-- Title of the HTML page -->
<style>/*Start of CSS styling*/

div#xyz { /* CSS rule for element with id "xyz" */
width: 200px; /* Set width of the container */
height: 250px; /* Set height of the container */
border: 1px solid black; /* Set border of the container */
display: -webkit-flex; /* Safari */ /* Use flexbox layout for WebKit browsers */
-webkit-align-items: flex-start; /* Safari 7.0+ */ /* Align items vertically at the beginning of the container for WebKit browsers */
display:flex; /* Use flexbox layout for other browsers */
align-items:flex-start; /* Align items vertically at the beginning of the container for other browsers */
}
div#xyz div { /* CSS rule for divs nested under element with id "xyz" */
-webkit-flex: 1; /* Safari 6.1+ */ /* Allow the divs to grow and shrink to fill the available space horizontally for WebKit browsers */
flex: 1; /* Allow the divs to grow and shrink to fill the available space horizontally for other browsers */
}
</style><!-- End of CSS styling -->
</head><!-- End of document header -->
<body><!-- Start of document body -->

<div id="xyz"><!-- Start of div with id "xyz" -->
<div style="background-color:#99FF99;">Item1</div><!-- First nested div with background color -->
<div style="background-color:#33CCFF;">Item2 with more content.</div><!-- Second nested div with background color and longer text -->
<div style="background-color:#FF99FF;">Item3</div><!-- Third nested div with background color -->
</div><!-- End of div with id "xyz" -->

</body><!-- End of document body -->
</html><!-- End of HTML document -->

Explanation:

The HTML code creates a container div with the ID "xyz" and three nested divs.
Each nested div has a different background color and content.
CSS is used to style the container div and its child divs, including setting width, height, border, and flexbox properties.
Flexbox properties are applied to align the child divs vertically at the beginning of the container using the align-items: flex-start; property.
Both WebKit and other browsers are targeted with appropriate prefixes to ensure cross-browser compatibility.

Live Demo:

See the Pen align-item-flex-start-answer by w3resource (@w3resource) on CodePen.

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