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<p>When a <code><a href=#the-canvas-element>canvas</a></code> element <a href=#represents>represents</a>
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<a href=#embedded-content>embedded content</a>, the user can still focus descendants
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of the <code><a href=#the-canvas-element>canvas</a></code> element (in the <a href=#fallback-content>fallback
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content</a>). This allows authors to make an interactive canvas
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keyboard-focusable: authors should have a one-to-one mapping of
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content</a>). When an element is focused, it is the target of
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keyboard interaction events (even though the element itself is not
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visible). This allows authors to make an interactive canvas
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keyboard-accessible: authors should have a one-to-one mapping of
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interactive regions to focusable elements in the <a href=#fallback-content>fallback
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content</a>.</p>
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content</a>. (Focus has no effect on mouse interaction
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events.) <a href=#DOMEVENTS>[DOMEVENTS]</a></p>
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<p>The <code><a href=#the-canvas-element>canvas</a></code> element has two attributes to control the
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size of the coordinate space: <dfn id=attr-canvas-width title=attr-canvas-width><code>width</code></dfn> and <dfn id=attr-canvas-height title=attr-canvas-height><code>height</code></dfn>. These
<p>When a <code><a href=#the-canvas-element>canvas</a></code> element <a href=#represents>represents</a>
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<a href=#embedded-content>embedded content</a>, the user can still focus descendants
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of the <code><a href=#the-canvas-element>canvas</a></code> element (in the <a href=#fallback-content>fallback
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content</a>). This allows authors to make an interactive canvas
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keyboard-focusable: authors should have a one-to-one mapping of
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content</a>). When an element is focused, it is the target of
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keyboard interaction events (even though the element itself is not
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visible). This allows authors to make an interactive canvas
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keyboard-accessible: authors should have a one-to-one mapping of
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interactive regions to focusable elements in the <a href=#fallback-content>fallback
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content</a>.</p>
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content</a>. (Focus has no effect on mouse interaction
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events.) <a href=#DOMEVENTS>[DOMEVENTS]</a></p>
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<p>The <code><a href=#the-canvas-element>canvas</a></code> element has two attributes to control the
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size of the coordinate space: <dfn id=attr-canvas-width title=attr-canvas-width><code>width</code></dfn> and <dfn id=attr-canvas-height title=attr-canvas-height><code>height</code></dfn>. These
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