Animated Input Placeholder Plugin With jQuery And CSS3 - Placeholderr

Animated Input Placeholder Plugin With jQuery And CSS3 - Placeholderr
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License: MIT
   

Placeholderr is a lightweight and cross-browser jQuery plugin used to animated, user-friendly placeholders using CSS3 and a little JavaScript.

How it works:

The placeholder text will auto move to the top when the input field gets focused or clicked, just like the HTML legend tag.

How to use it:

1. To use this plugin, make sure you have jQuery library installed properly in the html page.

<script src="//code.jquery.com/jquery-3.1.1.slim.min.js"></script>

2. Create your own form input fields with placeholders like this:

<fieldset class="formRow">
  <div class="formRow--item">
    <label for="firstname" class="formRow--input-wrapper js-inputWrapper">
      <input type="text" class="formRow--input js-input" id="firstname" placeholder="First name">
    </label>
  </div>
</fieldset>

3. The CSS to style the input field and animate the placeholder text when active.

.formRow {
  position: relative;
  width: 100%;
}

.formRow--item {
  display: block;
  width: 100%;
}

.formRow--input {
  position: relative;
  padding: 15px 20px 11px;
  width: 100%;
  outline: none;
  border: solid 1px #95989a;
  border-radius: 4px;
  color: #2c3235;
  letter-spacing: .2px;
  font-weight: 400;
  font-size: 16px;
  resize: none;
  -webkit-transition: all .2s ease;
  transition: all .2s ease;
}

.formRow--input-wrapper {
  position: relative;
  display: block;
  width: 100%;
}

.formRow--input-wrapper.active .placeholder {
  top: -5px;
  background-color: #ffffff;
  color: #fd999a;
  text-transform: uppercase;
  letter-spacing: .8px;
  font-size: 11px;
  line-height: 14px;
  -webkit-transform: translateY(0);
  transform: translateY(0);
}

.formRow--input-wrapper.active .formRow--input:not(:focus):not(:hover) ~ .placeholder { color: #fec8c9; }

.formRow--input-wrapper .formRow--input:focus, .formRow--input-wrapper .formRow--input:hover { border-color: #fd999a; }

.formRow .placeholder {
  position: absolute;
  top: 50%;
  left: 10px;
  display: block;
  padding: 0 10px;
  color: #95989a;
  white-space: nowrap;
  letter-spacing: .2px;
  font-weight: normal;
  font-size: 16px;
  -webkit-transition: all, .2s;
  transition: all, .2s;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  pointer-events: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

4. The core JavaScript (jQuery script) to active the animated placeholder.

var $inputItem = $(".js-inputWrapper");
$inputItem.length && $inputItem.each(function() {
  var $this = $(this),
      $input = $this.find(".formRow--input"),
      placeholderTxt = $input.attr("placeholder"),
      $placeholder;
  
  $input.after('<span class="placeholder">' + placeholderTxt + "</span>"),
  $input.attr("placeholder", ""),
  $placeholder = $this.find(".placeholder"),
  
  $input.val().length ? $this.addClass("active") : $this.removeClass("active"),
      
  $input.on("focusout", function() {
      $input.val().length ? $this.addClass("active") : $this.removeClass("active");
  }).on("focus", function() {
      $this.addClass("active");
  });
});

This awesome jQuery plugin is developed by Momciloo. For more Advanced Usages, please check the demo page or visit the official website.