Creating an animated transition for an element's height with CSS

Question

Creating an animated transition for an element's height with CSS

I need to animate the height of a div that doesn't have a specified height. Using max-height isn't an option due to multiple potential height amounts.

I attempted adding transition: height 0.2s ease to the div, but it didn't work as expected. How can I achieve height animation? CSS is preferred, but if necessary, I'm willing to use JavaScript.

JSFiddle Link

.tabGroup {
  background-color: brown;
  color: yellowgreen;
  transition: height 0.2s ease;
}
.tabGroup > div {
  display: none;
}
.tab1:checked ~ .tab1,
.tab2:checked ~ .tab2,
.tab3:checked ~ .tab3 {
  display: block;
}

<div class="tabGroup">
  <input type="radio" name="tabGroup1" id="rad1" class="tab1" checked="checked" />
  <label for="rad1">Tab 1</label>

  <input type="radio" name="tabGroup1" id="rad2" class="tab2" />
  <label for="rad2">Tab 2</label>

  <input type="radio" name="tabGroup1" id="rad3" class="tab3" />
  <label for="rad3">Tab 3</label>

  <div class="tab1">
    Content for Tab 1
  </div>
  <div class="tab2">
    Content for Tab 2
  </div>
  <div class="tab3">
    Content for Tab 3
  </div>
</div>

javascript css animation

Answer 1

Answer №1

Instead of using max-height as suggested in many answers, I have found that setting it at a value higher than any possible content height allows for smooth transitions for divs with varying heights.

In this code snippet, the key is to ensure the max-height value is set above the highest possible height of any content within the divs. By doing so, all div heights can smoothly transition to accommodate their unique content heights. The implementation may not be perfect, but it effectively achieves the desired outcome.

.tabGroup > div {
    max-height:0px;
    transition:max-height 0.5s;
    overflow:hidden;
}

.tab1:checked ~ .tab1,
.tab2:checked ~ .tab2,
.tab3:checked ~ .tab3 {
    max-height:500px;
}

http://jsfiddle.net/guanzo/hgr0cd0q/4/

Answer 2

Instead of using max-height as suggested in many answers, I have found that setting it at a value higher than any possible content height allows for smooth transitions for divs with varying heights.

In this code snippet, the key is to ensure the max-height value is set above the highest possible height of any content within the divs. By doing so, all div heights can smoothly transition to accommodate their unique content heights. The implementation may not be perfect, but it effectively achieves the desired outcome.

.tabGroup > div {
    max-height:0px;
    transition:max-height 0.5s;
    overflow:hidden;
}

.tab1:checked ~ .tab1,
.tab2:checked ~ .tab2,
.tab3:checked ~ .tab3 {
    max-height:500px;
}

http://jsfiddle.net/guanzo/hgr0cd0q/4/

Answer 3

Answer №2

Building upon @EricGuan's response. An effective approach is to set the elements with absolute positioning and trigger the transition only when a specific choice is made.

For a demonstration, refer to this solution: http://jsfiddle.net/9m526ezL/2/

.tabGroup {
  background-color: brown;
  color: yellowgreen;
  position: relative; // make sure the container has relative positioning
}

.tabGroup > div {
  // each tab should have absolute positioning with a colored background.
  position: absolute;
  background-color: brown;
  color: yellowgreen;
  width: 100%;
  max-height: 0;
  overflow: hidden;
}

// As a recommendation, utilize IDs for your menu items instead of classes,
// since they should be unique in any case.
#rad1:checked ~ .tab1,
#rad2:checked ~ .tab2,
#rad3:checked ~ .tab3 {
  transition: max-height 0.5s;
  max-height: 600px;
}

UPDATE: There is an alternative version available here: http://jsfiddle.net/9m526ezL/4/

To create the illusion that the previous text disappears, a simple trick is to set the color to transparent or match the background color when the tab is inactive.

Answer 4

Building upon @EricGuan's response. An effective approach is to set the elements with absolute positioning and trigger the transition only when a specific choice is made.

For a demonstration, refer to this solution: http://jsfiddle.net/9m526ezL/2/

.tabGroup {
  background-color: brown;
  color: yellowgreen;
  position: relative; // make sure the container has relative positioning
}

.tabGroup > div {
  // each tab should have absolute positioning with a colored background.
  position: absolute;
  background-color: brown;
  color: yellowgreen;
  width: 100%;
  max-height: 0;
  overflow: hidden;
}

// As a recommendation, utilize IDs for your menu items instead of classes,
// since they should be unique in any case.
#rad1:checked ~ .tab1,
#rad2:checked ~ .tab2,
#rad3:checked ~ .tab3 {
  transition: max-height 0.5s;
  max-height: 600px;
}

UPDATE: There is an alternative version available here: http://jsfiddle.net/9m526ezL/4/

To create the illusion that the previous text disappears, a simple trick is to set the color to transparent or match the background color when the tab is inactive.

Answer 5

Answer №3

Although you may prefer to avoid using js, I believe that leveraging jQuery could simplify achieving the desired outcome.

Consider implementing a script such as the following:

$(document).ready(function(){
    $("#rad1").click(function(){
        $("#tab1").slideDown("slow");
    });
});

Answer 6

Although you may prefer to avoid using js, I believe that leveraging jQuery could simplify achieving the desired outcome.

Consider implementing a script such as the following:

$(document).ready(function(){
    $("#rad1").click(function(){
        $("#tab1").slideDown("slow");
    });
});

Creating an animated transition for an element's height with CSS

JSFiddle Link

Answer №1

Answer №2

Answer №3

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