What is meant by Images must have alternate text: Element has no title attribute
I had created img tag but developer tools gives me a warning but i can't understand what that means.
Affected resources
<img src="./img/twitter.png">
This has to do with screen readers. Screen readers have no way of translating an image into words that gets read to the user, even if the image only consists of text. As a result, it's necessary for images to have short, descriptive alt text so screen reader users clearly understand the image's contents and purpose.
There are 3 ways to give an image alternate text:
Using an alt attribute i.e. <img alt="drawing of a cat" src="...">
Using an aria-label i.e. <img aria-label="drawing of a cat" src="...">
Using an aria-labelledby attribute i.e. <img arialabelledby="someID" src="..."
The alt attribute is needed when the picture is not available or the user turned all pictures off in his/her browser. It's necessary to include this attribute to your img elements.
<img src=".." alt="Alternative text" width="200" height="100" aria-label="For screen readers" />
Use alternate txt for img tag like this : <img src="./img/twitter.png" alt="tweetImg"> .
As it is important, if there is slow connection the alternate txt will be visible or due to some error your image don't show up .
The HTMLImageElement property alt provides fallback (alternate) text to display when the image specified by the element is not loaded.
This may be the case because of an error, because the user has disabled the loading of images, or because the image hasn't finished loading yet.
See this to read more about alt
Related
These are my 2 images elements and I have added the title and alt attributes:
<img src="images/dog.jpg" title="dog" alt="Picture of a dog">
<img src="images/dog-house.jpg" title="dog in house" alt="Picture of a dog in it's house">
So how do I make these 2 images accessible and is this enough for an image to be considered accessible?
Going by your <img> tags you have posted, I am going to recommend you things that will help your webpage with be more accessible to screenreaders.
Don't provide an alt text for images with captions and decorations
If your images are grouped with a caption already describing them or are used for decoration only. In these cases, alt text may seem redundant or unnecessary. In situations when an image is already explained with text content or does not add meaning to a page, the <img> still needs an alt attribute, but it can be set to an empty string. Here's an example:
<img src="visualDecoration.jpeg" alt="">
Don't write alt tags for the sake of SEO
Stuffing your alt tags with keywords is likely to hurt your search engine ranking rather than help it, as you may be viewed as spam.
Keep unique alt tags
Along with keyword stuffing, using the same alt tags and keywords for multiple images may appear as spam. Each image should have a unique alt tag.
This is how you can access the image in html. But make sure that the folder and the image are correct. For example if the image is in folder than the src should be folder/image.jpg. If the image is together with the html pages than just add the image.jpg in src.
<img src="images/dog.jpg" alt="Picture of a dog">
<img src="images/dog-house.jpg" alt="Picture of a dog>
The image inside this anchor tag throws a "Linked image missing alternative text" error in the WAVE accessibility checker:
<img src="google.jpg" alt="" />
You can't have a decorative image being the sole element of a link. This image is a link, it's not decorative.
<img src="google.jpg" alt="" />
When an image is the only content inside the link, its alternative should contain the link destination description.
In other cases, adding the role="presentation" would have been sufficient to explicitely state that you willingly wanted a decorative image which is not the case here.
Support for the title attribute in screen readers and other assistive technologies is extremely limited; it is also useless for sighted keyboard users.
See for example,
Don't Rely on the Title Attribute for Accessibility (2016)
Using the HTML title attribute – updated (2013)
If a link contains only an image and no text, the content of the alt attribute constitutes link's "link text", i.e. this is what a screen reader will announce when the link receives focus. For this reason, the alt attribute cannot be empty in this case. You need something like the following:
<img src="google.jpg" alt="Google" />
If you include actual text next to the image, as in the following example, you can leave the alt attribute empty:
<img src="google.jpg" alt="" />Google
In the last example, the image can be treated as a decorative one, due to the presence of proper link text. If the string Google were included in the alt attribute, it would be announced twice by a screen reader.
Adding a title attribute to the link is not a great idea for the following reasons:
It is useless to sighted keyboard users who cannot hover the mouse pointer over the link.
Screen reader support for the title attribute is not entirely consistent, as can be seen from the test results A "click here" link with TITLE attribute: Screen reader compatibility (last updated in April 2019). Adding the attribute title="google link" to the above examples would just lead to needless repetition in those screen reader and browser combinations that actually support that attribute on links.
<body>
<img src="cake.png" alt="Cake Photo">
</body>
what is the purpose of writing alt attribute in the above code, if it is for readability then we can show the express intend on src part.
"The alt attribute specifies an alternate text for an image, if the
image cannot be displayed.
The alt attribute provides alternative information for an image if a
user for some reason cannot view it (because of slow connection, an
error in the src attribute, or if the user uses a screen reader).
Tip: To create a tooltip for an image, use the title attribute!"
http://www.w3schools.com/tags/att_img_alt.asp
The alt part loads if the picture is unable to load. So you can use the alt to provide information to the user about what should be there if it's not.
I am just learning HTML. I have a confusion on using image and alt in learning HTML. When I use alt it doesn't go to the alt image.
<img src="w3schools.jpg" alt="W3Schools.com" width="104" height="142">
When I try to use my own example, or image, it doesn't work.
The alt attribute specifies an alternate text for the image, if it cannot be displayed.
The alt attribute is required in HTML4 and the page will not be valid without it.
Checkout at this link an example: example.
<img src="http://www.1341234123412312/ic_mountain.jpg" alt="Image not found" style="width:200px;height:128px"/>
alt isn't a tag, it's an attribute. It doesn't specify an alternate image, it defines the alternate text of an image if it cannot be displayed. In most cases it's used as hover-over text.
Like henriquedsg89 mentioned the alt ATTRIBUTE is used to display alternate text. An example of it's purpose would be if a blind person can't see the photos. Instead the browser will read the alt attribute out loud.
alt is attribute, and used to display the image description. if image is not displayed because of some case.
<img src="/img.jpg" alt="Image not found">
Let's say I have a list of images on the page, that are wrapped within links. So when u click an image it gets you to a page that displays the larger image
How should I handle title tags here?
Do I put the image title on both the image and the link, or just the image? Does it matter if the title is the same as the "alt" attribute?
<a title="image description" href="#"><img title="image description" alt="image description" src="image.jpg"></a>
HTML5 defines guidelines for alt usage. See the section "A link or button containing nothing but an image":
When an a element that is a hyperlink, or a button element, has no text content but contains one or more images, include text in the alt attribute(s) that together convey the purpose of the link or button.
So your alt attribute content could include something like "Open larger version of …".
(You may also be interested in my answer to the question on UX SE: What should the ALT text be for an image that is also a link?)
You should never have the same content for alt and title. See the general guidelines (from the W3C Candidate Recommendation of HTML5) (Update: In the W3C Recommendation of HTML5, this section got changed, and it no longer contains that quote.):
A corollary to this is that the alt attribute's value should never contain text that could be considered the image's caption, title, or legend. It is supposed to contain replacement text that could be used by users instead of the image; it is not meant to supplement the image. The title attribute can be used for supplemental information.
The image title attribute should describe the image.
The link title attribute should describe the target of the link.
<a title="view larger version" href="#">
<img title="image description" alt="image description" src="image.jpg">
</a>