place a div in center code example

Example 1: css center image

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

Example 2: css align center

//HTML

	Hello World


//CSS
.parent {
  display: flex;
  justify-content: center;
  align-items: center;
}

Example 3: css center

// example 1 
div { display: grid; place-items: center; }

// example 3
div{ display:flex; align-items:center; }

// example 3
div { width: 100%; margin: 0 auto; }

Example 4: align a div in center of another div

#container {
    width: 640px; /*can be in percentage also.*/
    height: auto;
    margin: 0 auto;
    padding: 10px;
    position: relative;
}