make all elements center in div code example

Example 1: how to center a div element

/*ADD MARGIN auto to left and right*/
.box1{
    width:80%;
    margin:0 auto;
}

Example 2: center element in div

/* html */
Centering with CSS

Text-Align Method

  



Margin Auto Method


Absolute Positioning Method


/* css */
h1,
h3 {
  text-align: center;
}

.blue-square-container {
  text-align: center;
}

.blue-square {
  background-color: #0074D9;
  width: 100px;
  height: 100px;
  display: inline-block;
}