align horizontally center images code example
Example 1: how to center an image element inside a block in css
img { display:block;
margin-left: auto;
margin-right:auto;
}
Example 2: position images in center of container
.image-container {
width: 500px;
height: 500px;
position: relative;
}
.image-container img {
position: absolute;
right: 0;
left: 0;
top: 0;
bottom: 0;
margin: auto auto;
}