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输入框设置默认提示文字（隐藏式）</a></h3> <p> html代码如下： lt tr gt lt td gt 签 名： lt td gt lt td gt lt input type text name signal value gt lt td gt lt tr gt lt tr gt lt td gt 个人简介： lt td gt lt td colspan gt lt textarea name description cols rows t ...</p> <p> <i class="icon-time"></i> <span>2019-08-18 23:11</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>1083</span> 推荐指数： <i class="icon-star" title="3.0577"></i> <i class="icon-star" title="3.0577"></i> <i class="icon-star" title="3.0577"></i> </p> <p><a class="btn btn-warning btn-primary" href="/blog/ad8f801.html">查看详情</a></p> </div> <div class="page-header"><h3><small><i class="icon-list"></i>相关推荐</small></h3></div> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/5d4fce1.html" target="_blank"><<B>textarea</B>><B>输入框</B><B>提示</B><B>文字</B></a> <p class="post-item-summary"> 背景 看了过时的资料，花费大把时间，不过也有收获，还是写写吧！ 分析 有同学可能想到直接在<<B>textarea</B>>标签内<B>输入</B>帮助<B>文字</B>，但是这又有一个新问题——因为<<B>textarea</B>><B>设置</B>了<B>默认</B>内容，如果用户不点击<B>输入框</B>（更改<B>输入框</B>的文本），而直接提交，就把<B>默认</B>的<B>提示</B>内容 ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Wed Nov 30 04:44:00 CST 2016</span> <i class="icon-envelope"></i> <span>3</span> <i class="icon-eye-open"></i> <span>20121</span> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/a51c3e1.html" target="_blank"><B>输入框</B>的<B>提示</B><B>文字</B>的样式<B>设置</B></a> <p class="post-item-summary"> 我们在<B>输入框</B>中时常需要加入<B>提示</B><B>文字</B>，更改<B>提示</B><B>文字</B>的样式： 在未更改之前： 一样的HTML代码，加入<B>设置</B>placeholder样式的代码： 效果： ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Tue May 07 00:58:00 CST 2019</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>1795</span> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/5b16911.html" target="_blank"><B>input</B> 标签实现带<B>提示</B><B>文字</B>的<B>输入框</B></a> <p class="post-item-summary"> 方法一：html5配合css3实现带<B>提示</B><B>文字</B>的<B>输入框</B>(摆脱js)； webkit特有的一个css，可以控制里面的<B>文字</B>样式，配合css3的动画效果和伪类，我们就可以很容易做出一个带动画的<B>输入框</B>，在系统登录、搜索等位置很适合，感兴趣的你可以参考下本文或许可以帮助到你，Webkit作为载体开发系统 ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Mon Oct 17 22:06:00 CST 2016</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>60782</span> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/c38d231.html" target="_blank">修改<B>input</B><B>输入框</B>placeholder<B>文字</B><B>默认</B>颜色</a> <p class="post-item-summary"> <B>input</B><B>输入框</B>，placeholder<B>默认</B>颜色修改，照如下添加样式： <B>input</B>::-webkit-<B>input</B>-placeholder, <B>textarea</B>::-webkit-<B>input</B>-placeholder { /* WebKit browsers */ color: #fff ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Sat May 02 09:44:00 CST 2020</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>950</span> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/2f214b1.html" target="_blank"><B>input</B><B>输入框</B><B>默认</B><B>文字</B>，点击消失</a> <p class="post-item-summary"> ; 直接在<B>input</B>中定义onfocus和onblur事件，缺点：鼠标一离开就显示<B>提示</B><B>文字</B>,<B>输入框</B>中用户 ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Mon May 20 23:46:00 CST 2013</span> <i class="icon-envelope"></i> <span>2</span> <i class="icon-eye-open"></i> <span>25368</span> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/9cd25e1.html" target="_blank"><B>input</B>和<B>textarea</B><B>框</B>中点击<B>文字</B>消失,<B>默认</B>字体是灰色,,<B>输入</B>时字体变成黑色</a> <p class="post-item-summary"> ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Wed Jan 16 23:51:00 CST 2019</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>791</span> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/8742671.html" target="_blank"><B>input</B>、<B>textarea</B>等<B>输入框</B><B>输入</B>中文时，拼音在<B>输入框</B>内会触发<B>input</B>事件的问题</a> <p class="post-item-summary"> 监听文本<B>输入框</B>的<B>input</B>事件，在拼写汉字（<B>输入</B>法）但汉字并未实际填充到文本<B>框</B>中（选词）时会触发<B>input</B>事件，如图： 但是在很多情况下，只需要<B>输入</B>到<B>输入框</B>的中<B>文字</B>符。 解决办法： 通过查阅资料得知在<B>输入</B>中文（包括语音识别时）会先后触发compositionstart ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Tue Apr 17 21:31:00 CST 2018</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>2056</span> <i class="icon-star"></i> <i class="icon-star"></i> </footer> </div> </article> <article class="post-item" style="border-bottom:1px dotted #f2f2f2;padding-bottom:10px;"> <div class="post-item-body"> <div class="post-item-text"> <a class="post-item-title" href="/blog/7c436f1.html" target="_blank">控制<B>input</B><B>输入框</B>中<B>提示</B>信息的显示和<B>隐藏</B>的方法</a> <p class="post-item-summary"> 一、要求 <B>input</B><B>输入框</B>，在光标显示时，<B>隐藏</B><B>提示</B>信息；光标离开<B>输入框</B>时，显示<B>提示</B>信息。 二、方法 1、给该<B>input</B>取id名，Onfocus=”方法名1(this)”，onblur=”方法名2(this)” 2、声明变量value，通过id名获得该<B>input</B> 3、function 方法 ... </p> </div> <footer class="post-item-foot"> <i class="icon-time"></i> <span>Wed Oct 24 22:27:00 CST 2018</span> <i class="icon-envelope"></i> <span>0</span> <i class="icon-eye-open"></i> <span>1541</span> <i class="icon-star"></i> <i class="icon-star"></i> </footer> </div> </article> </div> </div> <div class="span4 left_content"> <div 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