<p>During video playback, use the subtitles and the scroll bar to navigate. Clicking the subtitles is a fast way to skip forwards and backwards by small amounts.</p>
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<p>If you are on a low-resolution display, the left navigation bar can be hidden by clicking on the set of three left arrows next to it.</p>
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<p>If you need bigger or smaller fonts, use your browsers settings to scale them up or down. Under Google Chrome, this is done by pressing ctrl-plus, or ctrl-minus at the same time.</p>