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HTML

              
                .container.mt-5
  .row
    .col-md-5.d-flex.align-items-center
      h1 Sliding labels for Bootstrap forms
    .col-md-6.offset-md-1
      form.mt-4.mt-md-0
      
        .form-group
          label(for="name")
            | Name
          input.form-control(type='text')
          
        .form-group
          label(for="surname")
            | Surname
          input.form-control(type='text')
          
        .form-group
          label(for="email")
            | E-mail
          input.form-control(type='email')
              
            
!

CSS

              
                @import 'https://fonts.googleapis.com/css?family=Libre+Franklin:100,300,400,600,700,900'

$primary = #ff8d00
$box-shadow--vertical = 0 3px 6px 6px 
$dark = #111922
$grey-light = #a1a2a3

/* -----------------------
  Presentational stuff 
----------------------- */  
body
  font-family 'Libre Franklin', sans-serif
  background $dark
  
h1 
  font-weight 900
  // text-transform uppercase
  color $primary
  @media (min-width: 1200px) 
    font-size 60px 
  

/* -----------------------
  Form 
----------------------- */  
.form-control
  border-radius 0 
  &:focus
    box-shadow none
    
.form-group
  position relative             
  margin-bottom 25px

  > label
    text-transform uppercase
    font-size 10px
    color $grey-light
    transform-origin 0 0            
    transform scale(1.4)            
    pointer-events none             
    position relative    
    z-index 5                      
  
  > input 
    width 100%

  // Label dinamica
  > label
    transition transform .4s
    transform-origin 0 0
    transform scale(1.4) translateY(20px)

  &.not-empty
    > label 
      transform none

// .form-group 
 

 
/*------------------------------
	Form
------------------------------*/
.form-control
  border 0
  border-bottom 1px solid $grey-light
  &, &:focus, &:focus:hover 
    color $primary
    background none 
    outline none    
  &:focus, &:focus:hover 
    border-bottom 1px solid $primary

              
            
!

JS

              
                $( () => {

  $('.form-group').each((i,e) => {
    $('.form-control', e)
      .focus( function () {
        e.classList.add('not-empty');
      })
      .blur( function () {
        this.value === '' ? e.classList.remove('not-empty') : null;
      })
    ;
  });
  
});  
  
 
              
            
!
999px

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