Collapsible Panel In Html/css

I'm putting together a website. I need help creating the following feature: I want the 'About' link to expand into a panel when clicked, and retract when the user presses 'hide' i

Solution 1:

This answer explains how it can be achieved in full: Pure CSS collapse/expand div

Here is a quick rundown:

<divclass="FAQ"><ahref="#hide1"class="hide"id="hide1">+</a><ahref="#show1"class="show"id="show1">-</a><divclass="question"> Question Question Question Question Question Question Question Question Question Question Question? </div><divclass="list"><p>Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer </p></div></div>

CSS

/* source: http://www.ehow.com/how_12214447_make-collapsing-lists-java.html */.FAQ { 
  vertical-align: top; 
  height: auto; 
}

.list {
  display:none; 
  height:auto;
  margin:0;
  float: left;
}

.show {
  display: none; 
}

.hide:target + .show {
  display: inline; 
}
.hide:target {
  display: none; 
}
.hide:target ~ .list {
  display:inline; 
}

/*style the (+) and (-) */.hide, .show {
  width: 30px;
  height: 30px;
  border-radius: 30px;
  font-size: 20px;
  color: #fff;
  text-shadow: 01px0#666;
  text-align: center;
  text-decoration: none;
  box-shadow: 1px1px2px#000;
  background: #cccbbb;
  opacity: .95;
  margin-right: 0;
  float: left;
  margin-bottom: 25px;
}

.hide:hover, .show:hover {
  color: #eee;
  text-shadow: 001px#666;
  text-decoration: none;
  box-shadow: 004px#222 inset;
  opacity: 1;
  margin-bottom: 25px;
}

.listp {
  height:auto;
  margin:0;
}
.question {
  float: left;
  height: auto;
  width: 90%;
  line-height: 20px;
  padding-left: 20px;
  margin-bottom: 25px;
  font-style: italic;
}

And the working jsFiddle:

http://jsfiddle.net/dmarvs/94ukA/4/

Again none of the above is my work just to clarify, but it just goes to show how easy it is to find it on Google!!

Solution 2:

You need litle javascript to trigger an event (show/hide div)

<ahref="#"> Home </a><aclass="right"href="javascript:toggle_messege('inline')"id='href_about'> About </a><br /><aclass="right hide"href="javascript:toggle_messege('none')"id='hreh_close'> (Close)</a><divid='div_messege'class='hide'>Hidden messege to show, Hidden messege to show Hidden messege to show Hidden messege to show</div><p>Test Test TestTestTestTestTestTestTest</p><p>Test Test TestTestTestTestTestTestTest</p><p>Test Test TestTestTestTestTestTestTest</p><p>Test Test TestTestTestTestTestTestTest</p><p>Test Test TestTestTestTestTestTestTest</p>

CSS

.right {
    float:right;
}
.hide {
    display:none
}

javascript

functiontoggle_messege(type) {
 document.getElementById("div_messege").style.display = type;
    document.getElementById("hreh_close").style.display = type;

}

check this for running example http://codepen.io/faishal/pen/IHEyw