Adjust the center of an image as the width of the div fluctuates

In the upper-left block of my page, there is an image of piano keys within a 2x2 container div. The container class is called nav-blocks, and each individual block is identified by the class nav-block. Each block contains the image with the class nav-block-img. Borders have been added for visual clarity.

My desired layout includes:

  1. The image should stretch horizontally to fill the entire width of the block. I have set the nav-block-img class to min-width:100%, achieving the desired effect.
  2. If the block's width becomes narrower than the image's width, I want the middle of the image to be displayed rather than being anchored to one side as seen in the screenshot. When using float:left or float:right, the image does not behave as intended.

I am seeking a solution where the image is centered within the block as it shrinks horizontally, allowing both sides of the image to be evenly visible. Despite trying various suggestions, I have been unable to achieve this within my current framework.

.nav-blocks {
    margin-top: 10px;
    border-style: solid;
    border-width: 1px;
    width: 100%;
    height: 100%;
}
.nav-block {
    border-style: solid;
    border-width: 1px;
    float:left;
    width:50%;
    height:50%;
}
img.nav-block-img {
    min-width: 100%;
}

Answer №1

To perfectly align the image in the center, simply follow these instructions:

img.nav-block-img{
    margin-left: auto;
    margin-right: auto;
    min-width: 100%;
}

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