float centr html code example

Example 1: centre align image in div

body {
  margin: 0;
}

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

Example 2: make web page float to center of page

.center { 
    text-align-last: center; 
    border: 2px solid black; 
}