how to center display block element code example

Example 1: center with css

.parent {
  position: relative;
}
.child {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

Example 2: css center position

/**************** 1º method to center all elements ********************/
body {                   
  text-align: center;
}

/* If all of your elements have the property display equal to "inline", 
"block" or "inline-block", then you can use the text-align: center in
the <body> tag */

tag_name {
    display: inline; /* block or inline-block*/
}

/*...but if we have an element of type "block" with a width diferente
from the default (maximum width of the page), then this will no 
longer work!*/
  
tag_name {
    display: block;
  	width: 170px;
}


/**************** 2º method to center all elements ********************/
/* Another method, is to use the margins to center the element 
horizontally and/or vertically */

tag_name {
    display: block;
  	width: 100px;
  	margin: 0 auto 0 auto;  /* top, right, bottom, left */
}

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