How to Vertically Center a Div Inside a Percentage-Height Div?

Vertical Alignment of a Div within a Percentage-Height Div

Positioning a div vertically within another div that has a percentage-based height can be a common challenge in web development.

Question: Is it possible to center a div vertically within a div that has a percentage-based height?

Answer: Yes, it is possible to achieve vertical centering using various techniques. A popular approach is to utilize the CSS properties display: table-cell and vertical-align: middle.

By setting display: table-cell on the inner div, it becomes an element of a table and inherits the properties of a table cell. The vertical-align: middle property then aligns the cell vertically within the table.

For example, consider the following code:

.parent-div {
  height: 50%;
}

.child-div {
  display: table-cell;
  vertical-align: middle;
}

In this example, the child-div will be vertically centered within the parent-div which has a 50% height.

It's important to note that while this approach works well for most browsers, Internet Explorer 6 does not support the display: table-cell property. As such, alternative methods or cross-browser compatibility solutions may need to be considered for IE6.

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