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[CSS] Place label behind textbox as placeholder?

Asked by Axel,

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Grand Master

Axel

Posted
Posted

http://jsfiddle.net/QSh64/

The code is above.

I have made it so that onclick the background of the textbox will change from transparent to white. However I can't seem to figure out how to place the label behind the checkbox so it gets hidden. I've tried changing the z-index and nothing happens.

I'm trying to make a placeholder that disappears on click. By default chrome doesnt seem to remove the placeholder until the user starts typing.

Any clues?

Cheers,

Alex

13 answers to this question

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Community Regular

Freelancer1111

Posted
Posted

Can't you solve it with Javascript ?

Something like this :

<head>
    <script type="text/javascript">
	    function ClearPlaceHolder (input) {
		    if (input.value == input.defaultValue) {
			    input.value = "";
		    }
	    }
	    function SetPlaceHolder (input) {
		    if (input.value == "") {
			    input.value = input.defaultValue;
		    }
	    }
    </script>
</head>
<body>
    <input type="text" value="Please fill this field" onfocus="ClearPlaceHolder (this)" onblur="SetPlaceHolder (this)" />
</body>[/CODE]

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Neowinian

Jamie Holdroyd

Posted
Posted

i'd rather do it pure css if possible. It's part of a big complicated wordpress site so the less i have to put in the head the better. I don't see why this can't be achieved with the method I'm attempting.

You missed position: relative from the input, so right now the z-index is useless and the label is ontop of the input so when the background colour is changed it doesn't hide it.

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Community Regular

Calculator

Posted
Posted

You can use the + combinator to select a sibling of the focused input element:


.the-form input:focus + label.placeholder {
	display: none;
}
[/CODE]

This will hide the adjacent placeholder whenever the input gains focus. [font=courier new,courier,monospace][font=arial,helvetica,sans-serif]I forked your fiddle and also set the [font=courier new,courier,monospace]position[/font] on the input to [font=courier new,courier,monospace]relative[/font] so[/font][/font] the different [font=courier new,courier,monospace]z-index[/font] actually takes effect, as suggested by Jamie.

Note however that when the user types in the input and the input loses focus again, the placeholder re-appears. There's no CSS pseudo-class for distinguishing (non-)empty inputs, so you'll need a bit of JavaScript either way to hide the placeholder when the input is filled in.

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Grand Master

threetonesun

Posted
Posted

i'd rather do it pure css if possible. It's part of a big complicated wordpress site so the less i have to put in the head the better. I don't see why this can't be achieved with the method I'm attempting.

You're using other javascript scripts on the page, right? Compile them into one file and minimize it, it's a much better solution than non-semantic label hiding in css.

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Grand Master

game_over

Posted
Posted

By default chrome doesnt seem to remove the placeholder until the user starts typing.

Thats because it's a much better implementation of placeholders, lets say the user is looking at keyboard, they press tab, place holder is hidden.. it's best for placeholder to be removed when the user starts typing..

unless your doing it for something specific i'm struggling to see why you would go to the effort to do this when it provides a worse user experience.

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Grand Master

Axel

Posted
  • Author
Posted

I just thought of a REALLY simple solution!:-

<input id="code-field" type="text" placeholder="Postal Code" onfocus="placeholder=''" onblur="placeholder='Postal Code'">

onfocus and onblur events to change the placeholder text :)

http://jsfiddle.net/UQdFR/

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Community Regular

Freelancer1111

Posted
Posted

Well that is another workaround, but you have to remember that many older Web Browsers (also modern Internet Explorer) don't support the "placeholder" attribute !

http://www.w3schools...placeholder.asp

You could also do this in a sort-of hybrid thing. Use Placeholder when support and Javascript when necessary.

<script>
    // placeholder polyfill
    $(document).ready(function(){
	    function add() {
		    if($(this).val() == ''){
			    $(this).val($(this).attr('placeholder')).addClass('placeholder');
		    }
	    }

	    function remove() {
		    if($(this).val() == $(this).attr('placeholder')){
			    $(this).val('').removeClass('placeholder');
		    }
	    }

	    // Create a dummy element for feature detection
	    if (!('placeholder' in $('<input>')[0])) {

		    // Select the elements that have a placeholder attribute
		    $('input[placeholder], textarea[placeholder]').blur(add).focus(remove).each(add);

	    // Remove the placeholder text before the form is submitted
		    $('form').submit(function(){
			    $(this).find('input[placeholder], textarea[placeholder]').each(remove);
		    });
	    }
    });
</script>[/CODE]

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