CSS - Panel Expander

More... button at end

by Ben Clayton

HTML

<div class="content">
  <div class="expander">
    <div class="expand-header">
      Filter/tag name here
    </div>
    <div class="orignal-content">
      Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent porta lectus nec massa euismod vehicula. Sed sodales accumsan erat, ut pharetra libero molestie vitae.
    </div>
    <input id="uniq1" class="expand-control" type="checkbox" />

    <div class="expand-panel">
      Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent porta lectus nec massa euismod vehicula. Sed sodales accumsan erat, ut pharetra libero molestie vitae.
    </div>
    <label class="expand-label" for="uniq1"></label>
  </div>
</div>

CSS

/* Structural CSS */
.content {
  width: 300px;
  margin: 0px auto;
}

.expander {
  border: 1px solid gray;
  padding: 4px;
  /* padding-bottom: 25px; */
  margin-bottom: 20px;
  position: relative;
}

.expander .expand-header {
  height: 23px;
}


.expander .expand-panel {
  max-height:0px;/* use display:none for snap open/close */
  transition: max-height 1s ease-in-out;
  margin-top: 10px;
  margin-bottom:4px;
  padding: 0px;
  overflow:hidden;
}

.expander .expand-control:checked~.expand-panel {
  max-height: 400px;
}


.expander .expand-control,
.expander .expand-label {
  float: right;
  position: absolute;
  bottom: 5px;
  right: 5px;
  cursor: pointer;
}

/* the expand panel must be a follow sibling or child of checkbox element */


.expander .expand-control {
  display: none;
}

/* styling */

.expander input[type='checkbox'].expand-control~label:before {
  content: "...more";
  font-size: 1rem;
  line-height: 20px;
  display: block;
  /* background-color: #C0C0FF;
  border: 1px solid red; */
  text-align: center;
  cursor: pointer;
  margin-left: 5px;
  padding-left: 5px;
  padding-right: 5px;
}

.expander input[type='checkbox'].expand-control:checked~label:before {
  content: "...less";
}