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CSS Properties: How to center the alignments for one of the items inside a flexible element with JavaScript?

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Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>How to center the alignments for one of the items inside a flexible element with JavaScript</title>
<style> 
#xyz {
width: 220px;
height: 300px;
border: 1px solid black;
display: -webkit-flex; /* Safari */
-webkit-align-items: initial; /* Safari 7.0+ */
display: flex;
align-items: initial;
}

#xyz div {
    -webkit-flex: 1; /* Safari 6.1+ */
    flex: 1;
}

#alignselfDiv {
    -webkit-align-self: center; /* Safari 7.0+ */
    align-self: center;
}
</style>
</head>
<body>

<div id="xyz">
<div style="background-color:#99FF99;">Item1</div>
<div style="background-color:#33CCFF;" id="alignselfDiv">Item2  with more content.</div>
<div style="background-color:#FF99FF;">Item3</div>
</div>

<p>Click the "Try it" button to set the value of the alignSelf property to "stretch"</p>
<button onclick="w3r()">Try it</button>

<script>
function w3r() {
    document.getElementById("alignselfDiv").style.WebkitAlignSelf = "stretch"; // Code for Safari 7.0+
    document.getElementById("alignselfDiv").style.alignSelf = "stretch";
}
</script>
</body>
</html>

Live Demo:

See the Pen align-self-javascript-syntax-answer by w3resource (@w3resource) on CodePen.


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HTML-CSS: Tips of the Day

CSS strikethrough different color from text?

Yes, by adding an extra wrapping element. Assign the desired line-through color to an outer element, then the desired text color to the inner element. For example:

<span style='color:red;text-decoration:line-through'>
  <span style='color:black'>black with red strikethrough</span>
</span>

...or...

<strike style='color:red'>
  <span style='color:black'>black with red strikethrough<span>
</strike>

(Note, however, that <strike> is considered deprecated in HTML4 and obsolete in HTML5. The recommended approach is to use <del> if a true meaning of deletion is intended, or otherwise to use an <s> element or style with text-decoration CSS as in the first example here.)