html – 在div标签内添加标签失败

概述我有这个 HTML代码： <div id="welcomename"> <h1>Welcome! What's your name?</h1> <input type="text" class="form" name="name" placeholder="Your name here!" id="name"/> <input type="button" onclick=" 我有这个 HTML代码：

<div ID="welcomename">    <h1>Welcome! What's your name?</h1>    <input type="text"  name="name" placeholder="Your name here!" ID="name"/>    <input type="button" onclick="clicked();" value="I'm ready!"/></div><br>

这非常完美,但我有理由,我需要< br>在div’welcomename’里面.当我这样做时,它不起作用.

其他代码：

<div ID="hIDdendiv" >    <h1 ID="welcomehowareyou">How are you today,?</h1>    <form ID="welcomehowareyou2" method="post">        <select name="mood" onchange="popup(this.options.selectedindex)">            <option value="" Disabled selected>How are you?</option>            <option>I'm doing great,thanks!</option>            <option>I'm fine,but Could be better</option>            <option>I feel absolutely terrible today.</option>            <!--<input type="submit" value="Done!"/>-->    </form>    <p></p></div>

解决方法 请在这里查看小提琴 – http://jsfiddle.net/ghxce8dr/
它工作正常.我添加了< p>< / p>对于这两个div.

<div ID="welcomename">    <h1>Welcome! What's your name?</h1>    <input type="text"  name="name" placeholder="Your name here!" ID="name"/>    <input type="button" onclick="clicked();" value="I'm ready!"/></div><p></p>Text After First Break<div ID="hIDdendiv">    <h1 ID="welcomehowareyou">How are you today,?</h1>    <select name="mood" onchange="popup(this.options.selectedindex)">            <option value="" Disabled selected>How are you?</option>            <option>I'm doing great,but Could be better</option>        <option>I feel absolutely terrible today.</option></select>            <!--<input type="submit" value="Done!"/>-->        <p></p>        Text After Second Break</div>

希望这会帮助你.

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