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HTML

            
              <main>
	<h1>Fieldset style float labels</h1>
	<form class="flp">
		<div>
			<input type="text" id="fname" />
			<label for="fname">First Name</label>
		</div>
		<div>
			<input type="text" id="email" />
			<label for="email">Email</label>
		</div>
	</form>
</main>
            
          
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CSS

            
              /*importing Sniglet*/
@import url("https://fonts.googleapis.com/css?family=Sniglet");

/*basic reset*/
* {margin: 0; padding: 0; box-sizing: border-box;}

body {
	padding-top: 100px;
	background: hsl(120, 40%, 40%);
	font-family: Sniglet;
}
main {
	width: 500px; margin: 0 auto; padding-bottom: 10px;
	background: white; border-radius: 3px; overflow: hidden;
}
h1 {
	font-size: 24px; font-weight: normal;
	background: hsl(120, 40%, 95%); color: hsl(120, 40%, 40%);
	text-align: center; 
	padding: 20px 0; margin-bottom: 40px;
}

.flp {padding: 0 50px;}
/*Let's place the label over the input*/
.flp div {position: relative; margin-bottom: 30px;}

.flp input, .flp label {
	width: 400px; display: block;
	font: inherit; font-size: 16px; line-height: 24px;
	/*fixed height for FF line height issue. 
	height = 24(lineheight) + 10*2(padding) + 2(border)*/
	height: 46px;
	border: 1px solid #999;
}
.flp input {padding: 10px; outline: none; border-radius: 3px;}
.flp label {
	position: absolute; left: 0; top: 0;
	/*left/right padding will be 2px less, adjusted by padding on .ch*/
	padding: 10px 8px;
	border-color: transparent; color: #666;
	cursor: text;
}

/*label styles*/
.ch {
	display: block; float: left;
	position: relative; /*for upward animation*/
	background: white; 
}
.ch:first-child {padding-left: 2px;}
.ch:last-child {padding-right: 2px;}

/*active input label*/
.focussed {
	/*when any input is already focussed clicking on it(label) again won't do anything*/
	pointer-events: none;
}



            
          
!

JS

            
              //breakdown the labels into single character spans
$(".flp label").each(function(){
	var sop = '<span class="ch">'; //span opening
	var scl = '</span>'; //span closing
	//split the label into single letters and inject span tags around them
	$(this).html(sop + $(this).html().split("").join(scl+sop) + scl);
	//to prevent space-only spans from collapsing
	$(".ch:contains(' ')").html("&nbsp;");
})

var d;
//animation time
$(".flp input").focus(function(){
	//calculate movement for .ch = half of input height
	var tm = $(this).outerHeight()/2 *-1 + "px";
	//label = next sibling of input
	//to prevent multiple animation trigger by mistake we will use .stop() before animating any character and clear any animation queued by .delay()
	$(this).next().addClass("focussed").children().stop(true).each(function(i){
		d = i*50;//delay
		$(this).delay(d).animate({top: tm}, 200, 'easeOutBack');
	})
})
$(".flp input").blur(function(){
	//animate the label down if content of the input is empty
	if($(this).val() == "")
	{
		$(this).next().removeClass("focussed").children().stop(true).each(function(i){
			d = i*50;
			$(this).delay(d).animate({top: 0}, 500, 'easeInOutBack');
		})
	}
})





            
          
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999px

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