"Restricting the height of a DIV container based on the size

Struggling with CSS as I try to get my #wrapper DIV to adjust its size based on its contents. I've experimented with 100% height and min-height, but nothing seems to work. Could it be related to relative versus absolute positioning? Here's a snippet of my code for reference. Any advice would be appreciated.

(Updated by owner on 4/21/11)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CSS_Alpha_textArea</title>
<style type="text/css">
html {
    height: 100%;
    clear: both;
}

body {
    margin: 0px;
    padding: 0px;
    font-family:Georgia, "Times New Roman", Times, serif;
    color:#FFF;
    font-size: 100%;
    line-height: 1em;
    background-color: #gray;
    background-size: 100%;
    height:100%;
    clear: both;
}

#wrapper {
    margin-right: auto;
    margin-left: auto;
    /*background-color: #FFF;*/
    width: 75%;
    height:100%;
    position: relative;
    clear: both;
}

.screen {
    margin-right: auto;
    margin-left: auto;
    background-color: #3B6AA0;
    width: 75%;
    height:100%;
    filter: alpha(opacity=20);
    /* CSS3 standard*/
    opacity:0.20;
    z-index: -100;
    position: absolute;
    left: 12%;
    right: 12%;
    clear: both;
}

.overlay {
    margin-right: auto;
    margin-left: auto;
    width: 75%;
    height:100%;
    z-index: 100;
    position: absolute;
    left: 12%;
    right: 12%;
    padding: 0px;
    clear: both;
}

#textArea {
    height: auto;
    width: 75%;
    margin-right: auto;
    margin-left: auto;
    color: #FFF;
}
</style>

</head>
<body>

    <div id="wrapper">
    <div class="screen"></div>
        <div class="overlay">
            <div id="textArea">
            <p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br>
            <p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br><p>textArea</p><br>
            </div>
        </div>
    </div> 

</body>
</html>

Answer №1

When styling a container div, it is advisable to omit the height attribute unless there is a specific requirement to limit it. This approach allows the container's height to adjust dynamically based on its content.

Answer №2

Having a 100% property implies that the element will perfectly fit within its parent container.

To learn more about this concept, visit:

Answer №3

Unfortunately, the link you provided is not working. However, I noticed that by including the CSS property overflow:hidden; to your element with the id of #wrapper, you should be able to achieve the desired outcome.

It's important to note that when using absolute positioning, the element is taken out of the normal document flow. This means you will need to carefully consider how each item's content may exceed its container's boundaries.

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