how to center an image vertically and horizontally in html code example

Example 1: css center image

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

Example 2: center an image horizontally and vertically

.center{
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

Example 3: image center in div

img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 40%;
}

Example 4: how to center an image element inside a block in css

img { display:block;
      margin-left: auto;
      margin-right:auto;
      }