16 lines
534 B
Markdown
16 lines
534 B
Markdown
importance: 5
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---
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# Up/down button
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Create a "to the top" button to help with page scrolling.
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It should work like this:
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- While the page is not scrolled down at least for the window height -- it's invisible.
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- When the page is scrolled down more than the window height -- there appears an "upwards" arrow in the left-top corner. If the page is scrolled back, it disappears.
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- When the arrow is clicked, the page scrolls to the top.
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Like this (top-left corner, scroll to see):
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[iframe border="1" height="200" link src="solution"]
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