closed contact form on post page - show only button (toggle form)

acf-show-form-on-post.css

/*----------  Post form ----------*/
.job-contact-form {
  @include span-columns(24);
  @include omega();
  @include row();
  margin-top: $np;
  padding-top: $np;
  margin-bottom: $np;
  padding-bottom: $np;
  border-top: 1px solid lighten($gray, 60%);

  .inside {
    max-width: 65em;
    text-align: center;
    margin: 0 auto;

    .caldera-grid {
      text-align: left;
    }
  }

  .job-form-form {
    @include span-columns(24);
    @include omega();
    margin-top: $np;
  }

  .cf-uploader-trigger {
    width: auto !important;
  }
  .last_row {
    text-align: center !important;
  }

  input[type="submit"] {
    padding: $dp $np*2;
    font-weight: bold;
  }

  .job-form-title {
    padding-top: $dp;
    padding-bottom: $dp;
  }
  .job-form-button {
    outline: none;
    border-radius: 0;
  }
  .job-form-form {
    display: none;
  }
  &.opened {

    .job-form-button {
      background: $gray;
      color: $white;
    }
  }
}

acf-show-form-on-post.js

  /*----------  Open Kontakt Form  ----------*/
  $('#open-form-button').click(function(e){
      $('.job-contact-form').toggleClass('opened');
      $('body').toggleClass('form-opened');
      e.preventDefault();
      $( "#job-form-form" ).slideToggle( "slow", function() {
          // Animation complete.
      });
  });

acf-show-form-on-post.php

<?php if( get_field('show_form') ) : ?>

   <section id="job-contact-form" class="kontakt job-contact-form">
       <div class="inside">
           <div class="contact-holder">
               <button id="open-form-button" class="job-form-button button-mls center white large">
                     <?php _e('OPEN FORM.', DECOMTHEME_TRANSLATION); ?><
              </button>
                    <?php if( get_field('insert_form_shortcode','option') ): ?>
                        <div class="job-form-form" id="job-form-form">
                     <?php the_field( 'insert_form_shortcode', 'option' ); ?>
                   </div>
               <?php endif; ?>
           </div>
       </div>
   </section>

<?php endif; ?>