Web Developer Options

As alluded to earlier, textarea and contenteditable elements are spellchecked by default; single-line input boxes (input type=text) are not checked by default since many sites use them for username fields or other purposes not suitable for spellchecking. We tried to pick good defaults, but if your Web site needs to change any of these defaults, it can. The ‘spellcheck’ attribute defined by HTML5 allows you as a developer to override the default spellchecking behavior for an element and all of its children.
By adding the spellcheck=false attribute value on any element, you disable spellchecking for all textarea, contenteditable, and input type=text elements that are children of the given element (including the element itself). Setting spellcheck=true enables spellchecking in the same scenario, and can also be used to override the spellchecking setting from a parent in the element tree. For example, if you want spellchecking disabled for all textarea elements on a page, with one exception, you can add the spellcheck=false attribute value to the HTML element, and then add a spellcheck=true attribute to the textarea element that is the exception.
Try out this capability using the spellchecking IE10 test drive demo.
The spellcheck attribute gives Web developers the flexibility to tailor the experience to the needs of their users.