我的HTML代码看起来不对：
var first = document.getElementById('first'),
more = document.getElementById('more'),
trigger = document.createElement('span');
trigger.id = 'trigger';
trigger.innerHTML = 'Show less';
first.appendChild(trigger);
function toggleDiv() {
var state = more.className,
text = trigger.innerHTML;
more.className = (state == 'open') ? 'closed' : 'open';
trigger.innerHTML = (text == 'Show more') ? 'Show less' : 'Show more';
}
toggleDiv();
if (trigger.addEventListener) {
trigger.addEventListener('click', toggleDiv, false);
} else if (trigger.attachEvent) {
trigger.attachEvent('onclick', toggleDiv);
} else {
trigger.onclick = toggleDiv;
}#trigger {
text-decoration: underline;
color: blue;
cursor: pointer;
}
#more {
transition: ease-out .7s;
overflow: hidden;
}
#more p:first-child {
margin-top: 0;
}
#more.closed {
height: 0;
-webkit-transform: translateY(-600px);
transform: translateY(-600px);
}
#more.open {
-webkit-transform: translateY(0);
transform: translateY(0);
max-height: 600px;
}
#more + p {
margin-top: 0;
} <p id="first">This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.<br></p>
<p id="more" class="open">This is the paragraph marked with the ID=MORE.
<br>
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p>
我希望代码在用户点击时显示文字显示更多
但是在网页上它还显示：
This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.
This is the paragraph marked with the ID=MORE.
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.
This is the paragraph marked with the ID=MORE.
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.
This is the paragraph marked with the ID=MORE.
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.
This is the paragraph marked with the ID=MORE.
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.
This is the paragraph marked with the ID=MORE.
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
This is the paragraph marked with the ID=FIRST. It could display as much or as little text as you care to show.
This is the paragraph marked with the ID=MORE.
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
如何只留下一个“显示更多”按钮并摆脱其下方的文字？