Why is my image being stretched by flexbox instead of maintaining its aspect ratio?

One interesting aspect of Flexbox is how it handles image resizing. When you resize the width of an image within a flex container, the height does not adjust proportionally. This causes the image to appear stretched.

div {
  display: flex; 
  flex-wrap: wrap;
}

img {
  width: 50%
}
<div>
    <img src="https://i.imgur.com/KAthy7g.jpg" >
    <h1>Heading</h1>
    <p>Paragraph</p>
</div>

What is the reason behind this behavior?

Answer №1

When the align-self property is set to its default value of stretch, it causes the element to stretch. To center the element, simply change the value of align-self to center.

align-self: center;

To learn more, refer to the documentation available at: align-self

Answer №2

One of the crucial attributes to remember is align-self: center:

.container {
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
}

img.align-self {
  align-self: center;
}
<div class="container">
    <p>Before using align-self:</p>
    <img src="http://i.imgur.com/NFBYJ3hs.jpg" />
    <p>After using align-self:</p>
    <img class="align-self" src="http://i.imgur.com/NFBYJ3hs.jpg" />
</div>

Answer №3

Consider using either of the following CSS properties: contain or cover are commonly used

.my-img {
  object-fit: contain;
}

or

.my-img {
  object-fit: cover;
}

Answer №4

Dealing with a comparable problem, I found success by including the CSS property flex-shrink: 0; to the image element.

Answer №5

Utilizing margin for image alignment:

Our aim was to have the image aligned to the left, so we included:

img {
  margin-right: auto;
}

Similarly, for the image to align to the right, we could use margin-right: auto;. The code snippet demonstrates examples of both alignments.

Best of luck...

div {
  display:flex; 
  flex-direction:column;
  border: 2px black solid;
}

h1 {
  text-align: center;
}
hr {
  border: 1px black solid;
  width: 100%
}
img.one {
  margin-right: auto;
}

img.two {
  margin-left: auto;
}
<div>
  <h1>Flex Box</h1>
  
  <hr />
  
  <img src="https://via.placeholder.com/80x80" class="one" 
  />
  
  
  <img src="https://via.placeholder.com/80x80" class="two" 
  />
  
  <hr />
</div>

Answer №6

The reason for the stretching is that the default value of align-self is set to stretch. There are two possible solutions in this scenario: 1. Adjust the alignment of the image by setting align-self to center. OR 2. Center the alignment of the parent container by setting align-items to center.

img {
   align-self: center;
}

OR

.parent {
  align-items: center;
}

Answer №7

When I encountered a similar problem with my navigation bar, none of the suggested solutions seemed to work.

What solved it for me was including height: 100% for the image element.

If you're arranging the items in a horizontal manner, consider including width: 100% as a possible solution.

UPDATE: It appears that Chrome now automatically applies this value, but it's still recommended to include it for compatibility reasons.

Answer №8

Dealing with a similar problem involving a Foundation menu, I found that align-self: center; was ineffective for me.

To resolve this issue, I opted to enclose the image within a

<div style="display: inline-table;">...</div>

Answer №9

To style images in tailwindcss, make sure to include the flex-shrink-0 class

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