#tabindex

Roving Technique

It accepts an integer as a value, with different results depending on the integer's value:

A negative value (usually tabindex="-1") means that the element should be focusable, but should not be reachable via sequential keyboard navigation. It's mostly useful to create accessible widgets with JavaScript.

tabindex="0" means that the element should be focusable in sequential keyboard navigation, but its order is defined by the document's source order.

HTML `tabindex`, `iframe` and `scrolling` issues

i have never needed to use HTML tabindex until the a horizontal scrolling element could not scroll in internet explorer 11. ~~ `tabindex` is useful to ensure browser compatible scrolling behavior.

the case with iframe is different. it is more expressed in this post: animate in iframe causes parent to scroll to position iframe at top of window (webkit only). the problem is the iframe reloading…

7.4.1 Последовательная навигация фокуса и атрибут tabindex

Атрибут содержимого tabindex даёт авторам возможность контролировать, является ли элемент фокусируемым, можно ли его достичь через последовательную навигацию фокуса и каков относительный порядок элементов для целей последовательной навигации фокуса. Имя “tab index” происходит от обычного использования клавиши “tab” для переноса фокуса по фокусируемым элементам. Термин “табуляция/tabbing” относится к перемещению по фокусируемым элементам, которые можно достичь через последовательную навигацию фокуса.

Атрибут tabindex, если специфицирован, должен иметь значение – действительное целое число.

How to: HTML remove element from tab index

HTML remove element from tab index

I have a bunch of items on the site which can be tab indexed in a logical order.

On my page though there is a sideshow which is rendered with Jquery, when you tab through that, you get a lot of tab presses before the tab control moves to the next visible link on the page as all the things being tabbed through are hidden to the user visually.

Is there any way in…

Issues can sometimes arise with tabindex when you have a tabindex applied to elements on your page and in your modal. If you want to make sure that when tabbing in a modal that your tabindex does not leave the modal. Apply the code below, inline, to your last tabindex in the modal.

Source order—the vertical order of tags in HTML markup—is very important for a number of reasons:

It enables devices without visual styling (such as screen readers and lower-grade mobile phones) to optimize the readability of content.

Together with proper structure it facilitates flexibility with styling across multiple screens/devices.

It ensures users can properly interact with forms.

Take the following example from a Twitter form:

I typed in my first name then tabbed and began typing my last name, which would seem logical on this form. But my tab placed me in the “title” field.

At first I thought the tabindex of the fields may have been inadvertently shuffled out of order. But the source revealed something unexpected to the contrary. There was no tabindex in place and the source order of the fields was malformed.

With form fields source order is vital to a fluid experience. And tabindex is no substitute.

In the preceding example tabindex could be used to override source order and emulate ideal field alignment. On large or even moderately-small screens this would suffice. However, users with very small screens would find themselves tabbing up and down the page as the tabindex was activated.