textoverflow:ellipsis样式截取文字

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<div class="text_ellipsis">GS安全标准，确保燃烧充分，并时刻监测家中用气环境，安全无忧</div>
<div><a href="#" class="text_ellipsis">GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG</a></div>
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