Ensuring that the contents hidden by overflow:hidden remain truly concealed

Question

Ensuring that the contents hidden by overflow:hidden remain truly concealed

When applying overflow: hidden; to a div, I have encountered situations where keyboard actions can still cause the div to scroll, even without visible scrollbars. This makes it difficult to return the div to its original state. Are there any additional steps I should take to prevent this issue?

For instance, in the provided fiddle, if you click on the letter L and then press the down arrow key while holding shift (expanding the selection), the undesired scrolling behavior occurs.

Check out the example here: http://jsfiddle.net/PeeHaa/H34mM/

Another scenario is when a textarea is present inside the div: http://jsfiddle.net/h6Bhb/1/

html css

Answer 1

Answer №1

To prevent the selection of text within a specific element, a straightforward approach is to disable text-select functionality. This will effectively block the use of arrow keys for text selection.

In order to achieve this, you can utilize event.preventDefault() within the mousedown event handler using JavaScript.

If you are working with modern, standards-compliant browsers, your code snippet could look something like the following:

// assign an id to the div
document.getElementById('div').addEventListener('mousedown', function(e) {
    e.preventDefault();
}, false);

Edit

Alternatively, as @JimThomas suggested in the comments, you can also disable text selection via CSS. However, it's worth noting that the CSS solution may not be as widely supported as the JavaScript method. How to disable text selection highlighting using CSS?

At present, there may not be a more elegant or comprehensive solution available (bearing in mind potential issues with input elements). It's uncertain whether such a solution exists...

Answer 2

To prevent the selection of text within a specific element, a straightforward approach is to disable text-select functionality. This will effectively block the use of arrow keys for text selection.

In order to achieve this, you can utilize event.preventDefault() within the mousedown event handler using JavaScript.

If you are working with modern, standards-compliant browsers, your code snippet could look something like the following:

// assign an id to the div
document.getElementById('div').addEventListener('mousedown', function(e) {
    e.preventDefault();
}, false);

Edit

Alternatively, as @JimThomas suggested in the comments, you can also disable text selection via CSS. However, it's worth noting that the CSS solution may not be as widely supported as the JavaScript method. How to disable text selection highlighting using CSS?

At present, there may not be a more elegant or comprehensive solution available (bearing in mind potential issues with input elements). It's uncertain whether such a solution exists...

Answer 3

Answer №2

Include the following CSS in your div:

-moz-user-select: -moz-none;
-khtml-user-select: none;
-webkit-user-select: none;
-ms-user-select: none; /* IE10+ */
user-select: none;

This method may not be effective in Internet Explorer versions older than 10 or with textareas, unless you disable the textarea itself to prevent selection.

Alternatively, consider using a JavaScript solution.

Answer 4

Include the following CSS in your div:

-moz-user-select: -moz-none;
-khtml-user-select: none;
-webkit-user-select: none;
-ms-user-select: none; /* IE10+ */
user-select: none;

This method may not be effective in Internet Explorer versions older than 10 or with textareas, unless you disable the textarea itself to prevent selection.

Alternatively, consider using a JavaScript solution.

Ensuring that the contents hidden by overflow:hidden remain truly concealed

Answer №1

Answer №2

Similar questions

Creating a running text (marquee) with CSS is a simple and efficient way to make

Detecting collisions in JavaScript

The loader image does not appear on mobile screens during an AJAX call, but it functions correctly on desktop screens

Display a pop-up window after a set amount of time and automatically close it when clicking on an

Use CSS to style an unordered list into a dropdown menu

Tips for assigning dynamic #id(*ngFor) and retrieving its value in Angular2

Tips on eliminating borders in react-table components

CSS3: What is causing this issue in FireFox?

pop-up window that shows chosen choices using javascript or ajax

Audio Playlists and Dynamic Loading with WordPress Shortcode

Struggling to understand how to assign a specific color to individual divs within a loop

Setting the Height of a Fixed Element to Extend to the Bottom of the Browser Window

The flashing of Bootstrap tabs can be seen on various pages

Is there a way for me to use an ajax xmlhttprequest to submit all the selected values from my radio buttons?

What is the process for adding a download link to my canvas once I have updated the image?

Exporting Python Pandas Data Frame to an HTML file

Determining the Last Modified Date for a Sitemap using Javascript

What is the most effective way to store HTML templates on a webpage?

Embed JavaScript locally within an iframe HTML

Is it possible to save an HTML div as an image file?