Databases
StackOverflow2013
Postsdbo
POHow can I transition height: 0; to height: auto; using CSS?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow can I transition height: 0; to height: auto; using CSS?
    primarykey
    data
    text
    <p>I am trying to make a <code>&lt;ul&gt;</code> slide down using CSS transitions.</p> <p>The <code>&lt;ul&gt;</code> starts off at <code>height: 0;</code>. On hover, the height is set to <code>height:auto;</code>. However, this is causing it to simply appear, <em>not</em> transition,</p> <p>If I do it from <code>height: 40px;</code> to <code>height: auto;</code>, then it will slide up to <code>height: 0;</code>, and then suddenly jump to the correct height.</p> <p>How else could I do this without using JavaScript?</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="false" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-css lang-css prettyprint-override"><code>#child0 { height: 0; overflow: hidden; background-color: #dedede; -moz-transition: height 1s ease; -webkit-transition: height 1s ease; -o-transition: height 1s ease; transition: height 1s ease; } #parent0:hover #child0 { height: auto; } #child40 { height: 40px; overflow: hidden; background-color: #dedede; -moz-transition: height 1s ease; -webkit-transition: height 1s ease; -o-transition: height 1s ease; transition: height 1s ease; } #parent40:hover #child40 { height: auto; } h1 { font-weight: bold; }</code></pre> <pre class="snippet-code-html lang-html prettyprint-override"><code>The only difference between the two snippets of CSS is one has height: 0, the other height: 40. &lt;hr&gt; &lt;div id="parent0"&gt; &lt;h1&gt;Hover me (height: 0)&lt;/h1&gt; &lt;div id="child0"&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt; &lt;/div&gt; &lt;/div&gt; &lt;hr&gt; &lt;div id="parent40"&gt; &lt;h1&gt;Hover me (height: 40)&lt;/h1&gt; &lt;div id="child40"&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt;Some content &lt;br&gt; &lt;/div&gt; &lt;/div&gt;</code></pre> </div> </div> </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USVXp
    1. USHailwood
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTLinked
    2. PL
      singulars
      1. LTLinked
    3. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow can I transition height: 0; to height: auto; using CSS?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POHow can I transition height: 0; to height: auto; using CSS?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POHow can I transition height: 0; to height: auto; using CSS?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI believe the `height:auto/max-height` solution will only work if you're expanding area is greater than the `height` you want to restrict. If you have a `max-height` of `300px`, but a combo box dropdown, which can return `50px`, then `max-height` won't help you, `50px` is variable depending on the number of elements, you can arrive to an impossible situation where I can't fix it because the `height` is not fixed, `height:auto` was the solution, but I can't use transitions with this.
      singulars
      1. POHow can I transition height: 0; to height: auto; using CSS?
      1. USChristopher Thomas
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload