全角标点符号在 Web 网页中的排版问题
我在 PingCAP 担任前端开发实习生，实习工作中遇到一个全角标点符号在 HTML 中的排版问题，特此分享。
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前端开发中的placeholder与focus细节
这是input和textarea标签的一个属性，用于在文本框内无任何文字时显示一个灰色的提示文字。他能够提示用户在文本框中正确输入内容。