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What is a clearfix?

  • Last Updated : 29 Oct, 2021

A clearfix is a way for an element to automatically clear or fix its elements so that it does not need to add additional markup. It is generally used in float layouts where elements are floated to be stacked horizontally. If the element is taller than the element containing it then use the overflow property of CSS by setting its value as auto in order to overcome & fix the problem.

Example: From the below image, the logo is not fit into the div element. To fix this problem, there are two ways. The first is by increasing the height of the div block and the second by the use of clearfix CSS property.

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We will understand these concepts its implementation through the examples.



Please refer to the CSS Float article to understand the floating concept in CSS.

Example 1: In the code below, the problem is fixed without using the overflow property.

HTML




<!DOCTYPE html>
<html>
 
<head>
   
    <!-- CSS code to show the working
        of this property -->
    <style>
    div {
        border: 3px solid green;
        padding: 10px;
        height: 200px;
        text-align: justify;
    }
     
    img {
        float: right;
    }
    </style>
</head>
 
<body>
    <div>
        <img src=
             alt="Pineapple"
             width="200"
             height="200">
        GATE(Graduate Aptitude Test in Engineering) is one the most
        important and in-demand entrance exam for engineering graduates
        in our country. M.Tech. in Computer Science is one of the most
        demanding courses at prestigious institutes like IISCs and IITs.
        GATE(Graduate Aptitude Test in Engineering) is one of the ways
        to get into these top institutes. Every year around 10 Lakh
        candidates apply for GATE exam and very few of them manage to
        ace the exam with good score. So the competition is clearly
        very tough and simply preparing without any strategy will make
        it difficult to land you into IISCs and IITs.
    </div>
</body>
 
</html>

Output:

Example 2: In this code, the problem is fixed using the overflow property.

HTML




<!DOCTYPE html>
<html>
 
<head>
     
    <!-- CSS code to show the working
        of this property -->
    <style>
    div {
        border: 3px solid green;
        padding: 10px;
        text-align: justify;
    }
     
    img {
        float: right;
    }
     
    .gfg {
        overflow: auto;
    }
    </style>
</head>
 
<body>
    <div class="gfg">
        <img src=
             alt="Pineapple"
             width="200"
             height="200">
        GATE(Graduate Aptitude Test in Engineering) is one the most
        important and in-demand entrance exam for engineering graduates
        in our country. M.Tech. in Computer Science is one of the most
        demanding courses at prestigious institutes like IISCs and IITs.
        GATE(Graduate Aptitude Test in Engineering) is one of the ways
        to get into these top institutes. Every year around 10 Lakh
        candidates apply for GATE exam and very few of them manage to
        ace the exam with good score. So the competition is clearly
        very tough and simply preparing without any strategy will make
        it difficult to land you into IISCs and IITs.
    </div>
</body>
 
</html>

Output:




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