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text area tips and tricks...

Posted on 2013-01-21
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Last Modified: 2013-01-21
I am reading: http://css-tricks.com/textarea-tricks/

In part one:
"1. Image as textarea background, disappears when text is entered." the second screen code is:
$('textarea')
  .focus(function() { $(this).css("background", "none") })
  .blur(function() { if ($(this)[0].value == '') { $(this).css("background", "url(images/benice.png) center center no-repeat") } });

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I have placed this in css section in the code below but it doesn't work. It doesn't work because after I enter some text to the textarea control and exit it, the image "Be nice!" still is seen?

Question: What do I need to do for the image disappear once I enter some text into the text area?

I know with html5 place holder is the best for this purpose. But I want to handle the image and make sure I am correct in placing this code in css section.

Thank you.
-----------

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Border Maker</title>
<style type = "text/css">
h1, h2, h3 {
  text-align:center;
}
textarea, button {
  display: block;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 1em;
  background: url(images/benice.png) center center no-repeat;  /*This ruins default border */
  border: 1px solid #888;
 $('textarea')
  .focus(function() { $(this).css("background", "none") })
  .blur(function() { if ($(this)[0].value == '') { $(this).css("background", "url(images/benice.png) center center no-repeat") } });
}

table {
  margin-left: auto;
  margin-right: auto
}

</style>
</head>
<body>

<h1>Border Maker</h1>
<h3>Demonstrates how to read HTML form elements</h3>

<form method = "post"
      action = "borderMaker.php">

<div id = "input">
<h3>Text to modify</h3>

<textarea name = "basicText"
          rows = "10"
          cols = "40">
</textarea>
</div>

<table border = "2">
<tr>
  <td><h3>Border style</h3></td>
  <td colspan = "2"><h3>Border Size</h3></td>
</tr>

<tr>
<td>
<select name = "borderStyle">
  <option value = "ridge">ridge</option>
  <option value = "groove">groove</option>
  <option value = "double">double</option>
  <option value = "inset">inset</option>
  <option value = "outset">outset</option>
</select>
</td>
<td>


<select size = "5"
        name = "borderSize">
  <option value = "1">1</option>
  <option value = "2">2</option>
  <option value = "3">3</option>
  <option value = "5">5</option>
  <option value = "10">10</option>
</select>
</td>

<td>
<input type = "radio"
       name = "sizeType"
       value = "px" 
       checked = "checked" />pixels<br />
<input type = "radio"
       name = "sizeType"
       value = "pt" />points<br />
<input type = "radio"
       name = "sizeType"
       value = "cm" />centimeters<br />
<input type = "radio"
       name = "sizeType"
       value = "in" />inches<br />
</td>
</tr>
</table>

<div>
<button type = "submit">
  show me
</button>
</div>
</form>

</body>
</html>

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benice.png
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Question by:Mike Eghtebas
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1 Comment
 
LVL 14

Accepted Solution

by:
brendanmeyer earned 500 total points
ID: 38803057
$('textarea')
  .focus(function() { $(this).css("background", "none") })
  .blur(function() { if ($(this)[0].value == '') { $(this).css("background", "url(images/benice.png) center center no-repeat") } });

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is jQuery Code not css

you will need to add the jQuery library and move the code to a <script> tag

have a look at this page
http://learn.jquery.com/about-jquery/how-jquery-works/?rdfrom=http%3A%2F%2Fdocs.jquery.com%2Fmw%2Findex.php%3Ftitle%3DHow_jQuery_Works%26redirect%3Dno
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