Originally Posted by CKVA
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That's called a tooltip. Internet Explorer incorrectly displays the contents of the alt attribute as a tooltip, but it is the only modern browser to do so. If you want to provide tooltip text to your visitors, use the title attribute instead.
The title attribute should convey supplemental or advisory information only because tooltips will not be available to some visitors (keyboard only users, some handheld device users, visitors that rely on assistive technology...etc.). Alt text is primary content that should convey the same information as the image does. An element's alt attribute and title attribute should not have the same content.
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That has nothing to do with a tooltip, I say it's just a little popup that shows what the image ALT tag is.
Tooltip is way more general than that.
Also I always see them poping up in my IE, FireFox and Opera, so I guess all the giant browser coders got the point *incorrectly*.
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Originally Posted by CKVA
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Alt text should not necessarily describe an image. The alt attribute should serve the same purpose and communicate the same information as the image. If an image contains words relevant to the content, its alt text should include those words. If an image serves a purpose, like a search button, its alt text should convey that function. Images that are purely decorative, like rounded corners, should have null (empty) alt attributes.
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Basically same stuff as Tess said
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Originally Posted by CKVA
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Search engines do not heavily weigh alt and title attributes because they are frequently abused. Using these attributes correctly will help you reach a larger audience.
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In terms of
SEO, image ALT tag actually is a little factor that shows the quality of a page, so it is very important.
BTW, how exactly using ALT tags correctly helps me reach a larger audience?
