Clearfix Overflow: Auto;

If an element is taller than the element containing it, and it is floated, it will overflow outside of its container. We must add overflow: auto; to the containing element to fix this problem:

HTML file: Displayed by browser:
<style>
div {
    border: 3px solid #8AC007;
}
.img1 {
    float: right;
}
.clearfix {
    overflow: auto;
}
.img2 {
    float: right;
}
</style>
<body>
<p>In this example, the image is taller than the element containing it, and it is floated, so it overflows outside of its container:</p>

<div><img class="img1" src="../html_beg/images/w3schools.jpg" alt="W3Schools icon" width="104" height="142"> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus imperdiet, nulla et dictum interdum...</div>

<p style="clear:right">Add a clearfix class with overflow: auto; to the containing element, to fix this problem:</p>

<div class="clearfix"><img class="img2" src="../html_beg/images/w3schools.jpg" alt="W3Schools icon" width="104" height="142"> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus imperdiet, nulla et dictum interdum...</div>
</body>

In this example, the image is taller than the element containing it, and it is floated, so it overflows outside of its container:

W3Schools icon Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus imperdiet, nulla et dictum interdum...

Add a clearfix class with overflow: auto; to the containing element, to fix this problem:

W3Schools icon Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus imperdiet, nulla et dictum interdum...

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