8/10/2023 0 Comments Atext and accessibilityThey are also used by people who process text information better than audio and visual/pictorial information. Who: Descriptive transcripts are needed to provide audio and video content to people who are both Deaf and blind. Who: Basic transcripts are used by people who are Deaf, are hard of hearing, have difficulty processing auditory information, and others.ĭescriptive transcripts for videos also include visual information needed to understand the content. Example Descriptive Transcript from Caption Filesīasic transcripts are a text version of the speech and non-speech audio information needed to understand the content.let selectorsToScale = [įor each selector, get the font-size and store the selector and font size as a key-value pair in an array.In Making Audio and Video Media Accessible Summary You can use existing selectors that are already in your markup, or you can create a class just for this. Let’s walk through the script.įirst, create an array of CSS selectors for all of the text elements that should be resizable. This approach can also be used to create a system where a class enables resizing of specific text. Font sizes can be in any unit initially because the script will read the initial size and use it as a baseline for calculating new font sizes. First, it’s extremely flexible and can be used on virtually any site without updating markup or styling. This approach has a number of advantages. Store the text size setting in browser memory so it persists across pages and sessions.When text size is adjusted, update font-size for each selector based on the initial size.For each selector, get the initial font-size.Use CSS selectors to specify what should be resized.That would be easy, but it wouldn’t affect font sizes set in pixels, and it would target all text on the site, including text that is already large.Īfter a number of iterations, this is the approach I’ve settled on: We could make it change the font-size of or. There are a few different ways our widget could work. If there is very large text on the site, increasing its size will likely break the layout.Yes, this is a big no-no, but the reality is that websites like this still exist for a number of reasons Some font sizes may be in pixels instead of relative units like em or rem.Specifically, I’m going to discuss this in the context of retrofitting a widget on an existing site - one that was not necessarily designed or built with text resizing in mind.Ī website like this can present a number of challenges, but I will focus on two: Now, let’s talk about the feasibility of implementing a text widget. Feasibility of retrofitting the text widget In addition, if you have large headings and you resize them to 200% of their original size, it’s likely to cause clipping or other layout issues, which would fail the guideline. This is admittedly a somewhat loose interpretation, but my thinking is anything larger than 32px is larger than 200% of the default font size, so it’s presumably already legible enough to begin with. My interpretation of the requirements boils down to this: all critical text must be resizable to at least 200% of the default font size (16px). It is one of the suggested techniques for ensuring users can read your website, but there are other acceptable solutions to adjusting your text, such as simply ensuring your website responds to browser text size settings. It’s important to note that a text resizing widget is not a requirement. Content must not be clipped, truncated, or obscured when text is resized. Text must be resizable up to at least 200%.The intent is to help people with low vision read text on a web page.There is not a whole lot to go off of there, but WCAG 2.0 provides additional information in Understanding SC 1.4.4. Resize text: Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality. The requirement for adjustable text size comes from WCAG 2.0 Guideline 1.4.4: Accessibility standards for adjustable text Let’s learn how to implement a text resizing widget. In its simplest form, this widget is a pair of buttons or links that increase or decrease the text size. There are a number of ways to accommodate users, one of which is by implementing a text resizing widget. For some users, “normal-sized” text can be too small to read comfortably or at all, and, depending on the font size and family, even users with good vision may have difficulty reading text comfortably. In this tutorial, we will focus on a simple yet crucial aspect of the user experience: text size. Improving general web accessibility is a vast and ever-changing process, but it is important to ensure that websites and applications are accessible to all users. Creating a text resizing widget with CSS and JavaScript Diego Vogel Follow Designer, developer, and founder of Birdboar.
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