文字由下向上滚动效果

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<a href="#">你可曾有过无数的梦想，</a><br>
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<a href="#">却在时光的流逝里幻灭 </a><br>
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<a href="#">你可曾对未来期待憧憬，</a><br>
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<a href="#">却在成长的岁月中迷失</a><br>
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