How to center an image with css

In HTML pages, using images can make the page richer. However, when using images, we may encounter the problem that the image is not centered. This is because the position of the image is automatically determined by the browser rather than manually set by us. At this point, we can use CSS to center the image. This article will introduce how to center an image with CSS.

1. Use margin to center the image

Using margin is the most common method to center the image. We can center the image by adding a margin value of 50% for the top, bottom, left and right, and then negative half of the image width/height.

Code example:

HTML:

<div class="container">
  <img class="center-image" src="example.jpg">
</div>

CSS:

.container {
  position: relative;
}

.center-image {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

2. Use flexbox to center the image

flexbox is a CSS3 layout, which allows us to easily center child elements by setting the flex property of the parent element. For example, the following CSS code can center all child elements horizontally and vertically:

.parent {
  display: flex;
  justify-content: center;
  align-items: center;
}

So specifically for the centering of picture elements, we only need to set the container where the picture is located to flex layout, and set align-items and justify -content attribute is enough.

Code example:

HTML:

<div class="container">
  <img src="example.jpg">
</div>

CSS:

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

3. Use grid to center the image

Similar to flexbox, We can also use CSS grid to center the image. We use the image container as a grid container and set it to center alignment.

Code example:

HTML:

<div class="container">
  <img src="example.jpg">
</div>

CSS:

.container {
  display: grid;
  place-items: center;
}

Summary:

The above are three ways to center the image , we can choose a method to implement according to the actual situation. The margin method is most commonly used, but if you need to implement other layouts, flexbox and grid may be more suitable for you. Of course, in actual development, multiple methods can also be used in combination to achieve better results.

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