Tips for resizing a 100% div without displaying vertical scrollbars in the browser

Question

Tips for resizing a 100% div without displaying vertical scrollbars in the browser

I am facing an issue with a table that has three rows. I have a main #container div with a height of 100%, and inside it is a table with 3 rows. The first and last row contain fixed size content. However, in the second row, there is a #content div with a height of 100% and overflow:auto. (although the table has more rows and the page contains additional divs, for the purpose of this question, I have simplified it).

When the content in #content exceeds the space available, a vertical scrollbar should appear next to that div's content. Unfortunately, the vertical scrollbar appears at the browser window itself. Strangely, when I set a fixed size for the #content div, the vertical scrollbar does appear in the correct place.

I suspect I may be making a mistake or misunderstanding something :) Do you have any suggestions? Is there perhaps a jQuery/javascript solution available that can automatically adjust the size of that particular div when the page loads or the browser window is resized?

EDIT: To illustrate my problem better, I have created a small example:

In an ideal scenario, the entire table should always be visible within the browser window, without the need for a browser scrollbar other than within the #content div.

javascript jquery css

Answer 1

Answer №1

Creating a fixed header and footer can be simplified by avoiding tables and opting for a fixed position approach:

#header
{
    position: fixed;
    top: 0;
    height: 20px;
}

#content
{
    position: fixed;
    top: 20px;
    bottom: 20px;
    overflow: auto;
}

#footer
{
    position: fixed;
    bottom: 0;
    height: 20px;
}

Answer 2

Creating a fixed header and footer can be simplified by avoiding tables and opting for a fixed position approach:

#header
{
    position: fixed;
    top: 0;
    height: 20px;
}

#content
{
    position: fixed;
    top: 20px;
    bottom: 20px;
    overflow: auto;
}

#footer
{
    position: fixed;
    bottom: 0;
    height: 20px;
}

Answer 3

Answer №2

To enable scrolling within the div, apply the CSS property overflow: scroll. No Javascript is necessary for this functionality.

Answer 4

To enable scrolling within the div, apply the CSS property overflow: scroll. No Javascript is necessary for this functionality.

Answer 5

Answer №3

The 100% width of the #container is equal to the full page height, which may exceed the height of the window. Adjusting the heights of both html and body elements to 100% (equivalent to the window height) can assist in achieving your desired layout.

Answer 6

The 100% width of the #container is equal to the full page height, which may exceed the height of the window. Adjusting the heights of both html and body elements to 100% (equivalent to the window height) can assist in achieving your desired layout.

Answer 7

Answer №4

Update: these modifications should be effective for adjusting the height, and a similar approach can be taken for altering the width if desired.

JavaScript:

window.onresize = function() {
    var mainDiv = document.getElementById('content2');
    if($(window).height() < 100) { mainDiv.height = 50; }
    else if($(window).height() > 2000) { mainDiv.height = '100%'; }
    else { mainDiv.height = ($(window).height()/2); }
};

The main content div's structure:

<td valign='top' id='content2'>

Could something like this solution work effectively?

window.onresize = function() {
    var minHeight = 50;
    var minWidth = 50;
    var calculatedHeight = (window.height/2);
    var calculatedWidth = (window.width/2);
    var mainDiv = document.getElementById('yourdiv');
    mainDiv.height = (calculatedHeight > minHeight)? calculatedHeight : minHeight;
    mainDiv.width = (calculatedWidth > minWidth)? calculatedWidth : minWidth;
};

This method would adjust the size to half of the window dimensions, unless the minimum is set higher than 50. If needed, you could switch from min to max and trigger tehdiv.height = 100% when reaching that threshold.

Answer 8

Update: these modifications should be effective for adjusting the height, and a similar approach can be taken for altering the width if desired.

JavaScript:

window.onresize = function() {
    var mainDiv = document.getElementById('content2');
    if($(window).height() < 100) { mainDiv.height = 50; }
    else if($(window).height() > 2000) { mainDiv.height = '100%'; }
    else { mainDiv.height = ($(window).height()/2); }
};

The main content div's structure:

<td valign='top' id='content2'>

Could something like this solution work effectively?

window.onresize = function() {
    var minHeight = 50;
    var minWidth = 50;
    var calculatedHeight = (window.height/2);
    var calculatedWidth = (window.width/2);
    var mainDiv = document.getElementById('yourdiv');
    mainDiv.height = (calculatedHeight > minHeight)? calculatedHeight : minHeight;
    mainDiv.width = (calculatedWidth > minWidth)? calculatedWidth : minWidth;
};

This method would adjust the size to half of the window dimensions, unless the minimum is set higher than 50. If needed, you could switch from min to max and trigger tehdiv.height = 100% when reaching that threshold.

Answer 9

Answer №5

Since you are stuck using tables, I made some adjustments to the HTML code while keeping the CSS the same as the demo I shared in a previous comment. You can view it here. The only issue I encountered was in IE7 where the header and footer table cells didn't span 100% across:

CSS

#header, #footer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    border: #000 1px solid;
    margin: 5px;
}
#footer {
    top: auto;
    bottom: 0;
}
#content {
    position: absolute;
    top: 25px;
    left: 0;
    bottom: 25px;
    right: 0;
    overflow-y: auto;
    background: #ddd;
    margin: 5px;
}

HTML

<table id="page">
    <thead>
        <tr><td id="header">Header</td></tr>
    </thead>
    <tfoot>
        <tr><td id="footer">Footer</td></tr>
    </tfoot>
    <tbody>
        <tr><td><div id="content">Content goes here</div></td></tr>
    </tbody>
</table>

If possible, it is still recommended to avoid using tables by rearranging the HTML structure.

Answer 10

Since you are stuck using tables, I made some adjustments to the HTML code while keeping the CSS the same as the demo I shared in a previous comment. You can view it here. The only issue I encountered was in IE7 where the header and footer table cells didn't span 100% across:

CSS

#header, #footer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    border: #000 1px solid;
    margin: 5px;
}
#footer {
    top: auto;
    bottom: 0;
}
#content {
    position: absolute;
    top: 25px;
    left: 0;
    bottom: 25px;
    right: 0;
    overflow-y: auto;
    background: #ddd;
    margin: 5px;
}

HTML

<table id="page">
    <thead>
        <tr><td id="header">Header</td></tr>
    </thead>
    <tfoot>
        <tr><td id="footer">Footer</td></tr>
    </tfoot>
    <tbody>
        <tr><td><div id="content">Content goes here</div></td></tr>
    </tbody>
</table>

If possible, it is still recommended to avoid using tables by rearranging the HTML structure.

Tips for resizing a 100% div without displaying vertical scrollbars in the browser

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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