jQuery人性化表单标签提示js代码

版权：原创更新时间：1年以上

[该文章底部包含文件资源,可根据自己情况,决定是否下载资源使用,时间>金钱,如有需要,立即查看资源]

以下是 jQuery人性化表单标签提示js代码的示例演示效果:

当前平台(PC电脑)

平台:

整屏预览

部分效果截图:

HTML代码(index.html):

<!doctype html>
<html>
<head>
	<meta charset="gb2312">
	<title>jQuery人性化表单标签提示</title>
	<link href='http://fonts.googleapis.com/css?family=Open+Sans:300,400,700' rel='stylesheet' type='text/css'>
	<link href='http://fonts.googleapis.com/css?family=Pacifico' rel='stylesheet' type='text/css'>
	<script type="text/javascript" src="js/jquery-3.4.1.js"></script>
  <script type="text/javascript" src="js/jquery.label_better.js"></script>
  <style>
    html {
      height: 100%;
    }
    body {
      background: #272D30;
      padding: 0;
      text-align: center;
      font-family: 'open sans';
      position: relative;
      margin: 0;
      height: 100%;
    }
    
    .wrapper {
    	height: auto !important;
    	height: 100%;
    	margin: 0 auto; 
    	overflow: hidden;
    }
    
    a {
      text-decoration: none;
    }
    
    
    h1, h2 {
      width: 100%;
      float: left;
    }
    h1 {
      margin-top: 100px;
      color: #fff;
      text-shadow: 0 1px 5px rgba(0,0,0,0.5);
      margin-bottom: 5px;
      font-size: 70px;
      letter-spacing: -4px;
    }
    h2 {
      color: #5F7591;
      font-weight: bold;
      text-shadow: 0 1px 5px rgba(0,0,0,0.5);
      margin-top: 0;
      margin-bottom: 10px;
    }
    
    .pointer {
      color: #9b59b6;
      font-family: 'Pacifico', cursive;
      font-size: 30px;
      margin-top: 15px;
    }
    pre {
      margin: 80px auto;
    }
    pre code {
      padding: 35px;
      border-radius: 5px;
      font-size: 15px;
      background: rgba(0,0,0,0.1);
      border: rgba(0,0,0,0.05) 5px solid;
      max-width: 500px;
    }


    .main {
      float: left;
      width: 100%;
      margin: 0 auto;
    }
    
    
    .main h1 {
      padding:20px 50px;
      float: left;
      width: 100%;
      font-size: 60px;
      box-sizing: border-box;
      -webkit-box-sizing: border-box;
      -moz-box-sizing: border-box;
      font-weight: 100;
      margin: 0;
      padding-top: 25px;
      font-family: 'Pacifico';
      letter-spacing: 2px;
    }
   
    .main h1.demo1 {
      background: #1ABC9C;
    }
    
    .reload.bell {
      font-size: 12px;
      padding: 20px;
      width: 45px;
      text-align: center;
      height: 47px;
      border-radius: 50px;
      -webkit-border-radius: 50px;
      -moz-border-radius: 50px;
    }
    
    .reload.bell #notification {
      font-size: 25px;
      line-height: 140%;
    }
    
    .reload, .btn{
      display: inline-block;
      border: 4px solid #A2261E;
      border-radius: 5px;
      -moz-border-radius: 5px;
      -webkit-border-radius: 5px;
      background: #CC3126;
      display: inline-block;
      line-height: 100%;
      padding: 0.7em;
      text-decoration: none;
      color: #fff;
      width: 100px;
      line-height: 140%;
      font-size: 17px;
      font-family: open sans;
      font-weight: bold;
    }
    .reload:hover{
      background: #A2261E;
    }
    .btn {
      width: 200px;
      color: #fff;
      border: none;
      margin-left: 10px;
      background: rgba(255, 255, 255, 0.11);
    }
    .clear {
      width: auto;
    }
    .btn:hover, .btn:hover {
      background: rgba(255,255,255,0.3);
    }
    .btns {
      width: 410px;
      margin: 50px auto;
    }
    .credit {
      font-style: italic;
      text-align: center;
      color: #fff;
      padding: 10px;
      margin: 0 0 40px 0;
      float: left;
      width: 100%;
    }
    .credit a {
      color: #ccc;
      text-decoration: none;
      font-weight: bold;
    }
    
    .back {
      position: absolute;
      top: 0;
      left: 0;
      text-align: center;
      display: block;
      padding: 7px;
      width: 100%;
      box-sizing: border-box;
      -moz-box-sizing: border-box;
      -webkit-box-sizing: border-box;
      background: rgba(0, 0, 0, 0.65);
      font-weight: bold;
      font-size: 13px;
      color: #fff;
      -webkit-transition: all 200ms ease-out;
      -moz-transition: all 200ms ease-out;
      -o-transition: all 200ms ease-out;
      transition: all 200ms ease-out;
    }
    .back:hover {
      background: rgba(0, 0, 0, 0.85);
    }
    
    .bl_form {
      margin: 150px 0;
    }
    
    .bl_form input {
      padding-top: 15px;
      background: rgba(255,255,255,0.10);
      box-shadow: 0 2px 8px rgba(0,0,0,0.2);
      border: none;
      color: white;
      padding: 10px 15px;
      border-radius: 25px;
      font-size: 16px;
      outline: none;
    }


    .lb_wrap .lb_label.top, .lb_wrap .lb_label.bottom {
      left: 15px !important;
    }

    .lb_wrap .lb_label.left {
      left: 0;
    }

    .lb_label {
      font-weight: bold;
      color: #999;
    }

    .lb_label.active {
      color: #FFF;
    }
    
	</style>
	<script>
	  $(document).ready( function() {
	    $(".label_better").label_better({
	      easing: "bounce"
	    });
	  });
		
	</script>
</head>
<body>
  <div class="wrapper">
	  <div class="main">
	    <div class="header">
        <h1>jQuery Label Better</h1>
        <h2>Label your form input like a boss</h2>
        <p class="credit">Created by Pete R., Founder of BucketListly</p>
        <div class="btns">
  	      
  	    </div>
  	  </div>
      <div class="page-container">
        <form class="bl_form">
          <input type="text"  class="label_better" data-new-placeholder="Username" placeholder="Username" >
          <input type="email"  class="label_better" data-new-placeholder="Email Address" placeholder="Email Address">
          <input type="password" value="abcdefg"  class="label_better" data-new-placeholder="Password" placeholder="Password">
          <input type="password" value="abcdefg" class="label_better" data-new-placeholder="Shhh.." placeholder="Confirm Password">
        </form>
      </div>
    </div>
  </div>
</body>
</html>

JS代码(jquery.label_better.min.js):

!function(e){
	var t={
	position:"top",animationTime:500,easing:"ease-in-out",offset:20,hidePlaceholderOnFocus:true}
;
	e.fn.animateLabel=function(t,n){
	var r=n.data("position")||t.position,i=0,s=0;
	e(this).css({
	left:"auto",right:"auto",position:"absolute","-webkit-transition":"all "+t.animationTime+"ms "+t.easing,"-moz-transition":"all "+t.animationTime+"ms "+t.easing,"-ms-transition":"all "+t.animationTime+"ms "+t.easing,transition:"all "+t.animationTime+"ms "+t.easing}
);
	switch(r){
	case"top":i=0;
	s=(e(this).height()+t.offset)*-1;
	e(this).css({
	top:"0",opacity:"1","-webkit-transform":"translate3d("+i+","+s+"px,0)","-moz-transform":"translate3d("+i+","+s+"px,0)","-ms-transform":"translate3d("+i+","+s+"px,0)",transform:"translate3d("+i+","+s+"px,0)"}
);
	break;
	case"bottom":i=0;
	s=e(this).height()+t.offset;
	e(this).css({
	bottom:"0",opacity:"1","-webkit-transform":"translate3d("+i+","+s+"px,0)","-moz-transform":"translate3d("+i+","+s+"px,0)","-ms-transform":"translate3d("+i+","+s+"px,0)",transform:"translate3d("+i+","+s+"px,0)"}
);
	break;
	case"left":i=(e(this).width()+t.offset)*-1;
	s=0;
	e(this).css({
	left:0,top:0,opacity:"1","-webkit-transform":"translate3d("+i+"px,"+s+"px,0)","-moz-transform":"translate3d("+i+"px,"+s+"px,0)","-ms-transform":"translate3d("+i+"px,"+s+"px,0)",transform:"translate3d("+i+"px,"+s+"px,0)"}
);
	break;
	case"right":i=e(this).width()+t.offset;
	s=0;
	e(this).css({
	right:0,top:0,opacity:"1","-webkit-transform":"translate3d("+i+"px,"+s+"px,0)","-moz-transform":"translate3d("+i+"px,"+s+"px,0)","-ms-transform":"translate3d("+i+"px,"+s+"px,0)",transform:"translate3d("+i+"px,"+s+"px,0)"}
);
	break}
}
;
	e.fn.removeAnimate=function(t,n){
	var r=n.data("position")||t.position,i=0,s=0;
	e(this).css({
	top:"0",opacity:"0","-webkit-transform":"translate3d("+i+","+s+"px,0)","-moz-transform":"translate3d("+i+","+s+"px,0)","-ms-transform":"translate3d("+i+","+s+"px,0)",transform:"translate3d("+i+","+s+"px,0)"}
)}
;
	e.fn.label_better=function(n){
	var r=e.extend({
}
,t,n),i=e(this),s="focus",o="blur";
	if(r.easing=="bounce")r.easing="cubic-bezier(0.175,0.885,0.420,1.310)";
	i.each(function(t,n){
	var i=e(this),u=i.data("position")||r.position;
	i.wrapAll("<div class='lb_wrap' style='position:relative;
	display:inline;
	'></div>");
	if(i.val().length>0){
	var a=i.data("new-placeholder")||i.attr("placeholder");
	e("<div class='lb_label "+u+"'>"+a+"</div>").css("opacity","0").insertAfter(i).animateLabel(r,i)}
i.bind(s,function(){
	if(i.val().length<1){
	var t=i.data("new-placeholder")||i.attr("placeholder"),n=i.data("position")||r.position;
	e("<div class='lb_label "+n+"'>"+t+"</div>").css("opacity","0").insertAfter(i).animateLabel(r,i)}
if(r.hidePlaceholderOnFocus==true){
	i.data("default-placeholder",i.attr("placeholder"));
	i.attr("placeholder","")}
i.parent().find(".lb_label").addClass("active")}
).bind(o,function(){
	if(i.val().length<1){
	i.parent().find(".lb_label").bind("transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd",function(){
	e(this).remove()}
).removeAnimate(r,i)}
if(r.hidePlaceholderOnFocus==true){
	i.attr("placeholder",i.data("default-placeholder"));
	i.data("default-placeholder","")}
i.parent().find(".lb_label").removeClass("active")}
)}
)}
}
(window.jQuery)

附件:下载该文件资源,减少时间成本(增值服务)