Creating a basic web form can be easy. It must contain three lines of text/ASP.NET elements within a Master page that includes a header and footer. To ensure that these three lines are centered both vertically and horizontally on the page, especially when the bottom changes dynamically, CSS styling plays a key role. But how exactly can this be achieved?
Ensure to have a container and center it on your master page, followed by a div element for the main content. The code snippet would look like:
<div id="center">
<div id="main">
<p>The text within this container will be both vertically and horizontally centered.</p>
</div><!-- end #main -->
</div><!-- end #center -->
<style>
#center { position: absolute; top: 50%; width: 100%; height: 1px; overflow: visible }
#main { position: absolute; left: 50%; width: 720px; margin-left: -360px; height: 540px; top: -270px }
</style>
This method aligns with Damien's recommendation and is typically the most effective way to use only CSS for centering content. However, employing JavaScript/jQuery may provide more flexible solutions.
Aligning elements horizontally can be achieved easily. If the element has a specific width, you can apply the following CSS code:
.element
{
margin: 0 auto;
}
This code sets the top and bottom margins to 0 and automatically calculates the margins for the left and right sides.
For vertically centering elements, there is a technique known as dead center. It involves using a 50% offset from the top of the page and a negative margin to center the content vertically. The only requirement is that the element must have a fixed size (height and width).
Here is the solution that helped me:
<style type="text/css">
.auto-style1 {text-align:center;}
</style>
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