Sticky navbar with scroll indicator

The fixed sticky navigation when scrolling page from top 150px. Including the scroll indicator.

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Pug
Scss
JS
PHP

.navbar-sticky.uk-background-default(uk-sticky='top: 150' class='uk-visible@m')
  each i in header
    each j in i.navbar  
      div(uk-grid)
        .uk-padding-default-top.uk-padding-default-bottom.logo.uk-margin-left(style='width:325px;background-color:#ffe403')
          h1
            a(href='/')
              img(src=j.src)
        .uk-width-expand.uk-position-relative
          ul.uk-flex.uk-flex-middle.uk-flex-right.uk-margin-left.navbar(style='width: calc(100% - 160px);height:100%; overflow:scroll')
            each k,index in j.nav
              if index===0
                li.uk-active
                  a.text-medium.uk-text-bold.uk-text-nowrap.link-secondary(href=k.href style="margin-right:25px; letter-spacing:2px")=k.text
              else
                li
                  a.text-medium.uk-text-bold.uk-text-nowrap.link-secondary(href=k.href style="margin-right:25px; letter-spacing:2px")=k.text
          each l in j.navVideo
            a.uk-display-block.uk-position-center-right(style='width:140px' class="uk-visible@l")
              .uk-display-block.uk-background-cover(data-src=l.src uk-img style='width:100%;height:90px;')
              img.uk-position-center(src=l.icon style='width: 40px; z-index:10')
      .scrollIndicator.uk-background-secondary(style="height:6px;width:0;")

.navbar-sticky {
  position: fixed;
  width: 100%;
  top: 0;
  opacity: 0;
  pointer-events: none;
  transition: all .8s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(-100%);
  &.uk-sticky-fixed {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  & + .uk-sticky-placeholder {display:none!important}
}

/**
 * Scroll Indicator
 */

window.onscroll = function () { scrollIndicatior() };

function scrollIndicatior() {
  var winScroll = document.body.scrollTop || document.documentElement.scrollTop;
  var height = document.documentElement.scrollHeight - document.documentElement.clientHeight;
  var scrolled = (winScroll / height) * 100;
  Array.from(vars.scrollIndicator).forEach(element=>{
    element.style.width = scrolled + "%";
  })
}

<div class="navbar-sticky uk-background-default uk-visible@m" uk-sticky="top: 150" style="z-index:10000">
  <div uk-grid="uk-grid">
    <div class="uk-padding-default-top uk-padding-default-bottom logo uk-margin-left" style="width:325px;background-color:#ffe403">
      <h1><a href="/"><img src="<?php echo get_template_directory_uri(); ?>/assets/img/logo.svg"/></a></h1>
    </div>
    <div class="uk-width-expand uk-position-relative">
      <ul class="uk-flex uk-flex-middle uk-flex-right uk-margin-left navbar scrollbar" style="width: calc(100% - 160px);height:100%; overflow:scroll">
        <?php $navs = wp_get_nav_menu_items('main'); foreach($navs as $nav): ?>
        <li <?php echo ( $nav->object_id == get_queried_object_id() ) ? 'class="uk-active"':''; ?>><a class="text-medium uk-text-bold uk-text-nowrap link-secondary" href="<?php echo esc_attr($nav->url); ?>" style="margin-right:25px; letter-spacing:2px"><?php echo esc_html($nav->title); ?></a></li>
        <?php endforeach; ?>
      </ul>
      <?php 
      $args_post = array(
        'posts_per_page' => 1,
        'tax_query' => array(
          array(
            'taxonomy' => 'live',
            'field' => 'slug',
            'terms' => 'showinlive'
          )
        )
      );
      $query_post = new WP_Query( $args_post );
      if( $query_post->have_posts() ): while( $query_post->have_posts() ): $query_post->the_post();?>
      <a class="uk-display-block uk-position-center-right uk-visible@l icon-play" style="width:140px" href="<?php echo esc_attr(get_the_permalink()); ?>">
        <div class="uk-display-block uk-background-cover" data-src="<?php echo (has_post_thumbnail())?get_the_post_thumbnail_url():get_template_directory_uri().'/assets/img/default_image.png'; ?>" uk-img style="width:100%;height:90px;"></div>
        <span class="uk-position-center" style='transform: translate(-50%,-50%) scale(.3); z-index:10;'>
          <svg xmlns="http://www.w3.org/2000/svg" width="147" height="147"><g data-name="Group 2043" transform="translate(-887 -5791)"><circle data-name="Ellipse 1" cx="73.5" cy="73.5" r="73.5" transform="translate(887 5791)" fill="#fff" opacity=".251"/><g data-name="Ellipse 1 copy" transform="translate(887 5791)" fill="rgba(255,255,255,0)" stroke="rgba(255,255,255,0.65)" stroke-linejoin="round" stroke-width="3"><circle cx="73.5" cy="73.5" r="73.5" stroke="none"/><circle cx="73.5" cy="73.5" r="72" fill="none"/></g><path data-name="Shape 11" d="M984.64 5864.508l-37.643-21.511v43.016l37.64-21.508" fill="#fff"/></g></svg>
        </span>
      </a>
      <?php endwhile; wp_reset_postdata();endif; ?>
    </div>
  </div>
  <div class="scrollIndicator uk-background-secondary" style="height:6px;width:0;"></div>
</div>

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