Align contents inside a div

Question

I use css style text-align to align contents inside a container in HTML. This works fine while the content is text or the browser is IE. But otherwise it does not work.

Answer 1

Below are the methods which have always worked for me

1. By using flex layout model:

Set the display of the parent div to display: flex; and the you can align the child elements inside the div using the justify-content: center; (to align the items on main axis) and align-items: center; (to align the items on cross axis).

If you have more than one child element and want to control the way they are arranged (column/rows), then you can also add flex-direction property.

Working example:

.parent {
  align-items: center;
  border: 1px solid black;
  display: flex;
  justify-content: center;
  height: 250px;
  width: 250px;
}

.child {
  border: 1px solid black;
  height: 50px;
  width: 50px;
}

<div class="parent">
  <div class="child"></div>
</div>

2. (older method) Using position, margin properties and fixed size

Working example:

.parent {
  border: 1px solid black;
  height: 250px;
  position: relative;
  width: 250px;
}

.child {
  border: 1px solid black;
  margin: auto;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50px;
  position: absolute;
  width: 50px;
}

<div class="parent">
  <div class="child"></div>
</div>

Answer 2

Just another example using HTML and CSS:

<div style="width: Auto; margin: 0 auto;">Hello</div>