Center image element in parent div

Question

How I can set center an image element inside a parent div? I would like to do this so that the middle of the image is always in the center of his parent. Also I want the ima

Answer 1

Add text-align: center; CSS declaration to the parent .box instead of the children .box img.

.box {
    height: 100%;
    width: 450px;
    border: 2px solid red;
    background: green;
    overflow: hidden;
    text-align: center;  /* align center all inline elements */
}

Here is the Fiddle.

Update

It seems there's also a 5px gap under the image, It belongs to the line height reserved characters. To remove that from inline elements like you can use vertical-align: bottom:

.box img {
    height: 100%;
    width: auto;
    vertical-align: bottom; /* <-- fix the vertical gap */
}

JSFiddle Demo #2