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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <div id="main">
  <div>SCROLL TAG is: <em id="scrollTag"></em> ?
    <pre id="ua"></pre>
  </div>
  <button class="js-scroll" data-tag="html">scroll HTML</button> | 
  <button class="js-scroll" data-tag="body">scroll body</button>
</div>
<footer>
  <a id="bottom" href="#">^ scroll top</a>
  &lt;- <span> used <code>$('html, body')</code> callback run 2 times!<span><br><small>update: 2017-09-21</small>
</footer>
            
          
!
            
              #main
  height: 1200px
  text-align: center
footer
  text-align: center
pre
  display: block
  margin: 0 auto
  padding: 1em
  background-color: #F7F7F7
  max-width: 50%
  white-space: pre-wrap
  word-wrap: break-word
            
          
!
            
              !function($, w, d) {
  
  function checkScrollTag() {
    var ua = navigator.userAgent;
    console.log( ua );
    
    var scrollTag = ( (!window.chrome && 'WebkitAppearance' in document.documentElement.style) || (ua.indexOf('OPR') !== -1 || ua.indexOf('Edge') !== -1) )? 'body' : 'html';
    
    $('#scrollTag').html(scrollTag);
    $('#ua').text(ua);
  }
  
  $(function() {
    var bottom = $('#bottom').offset().top;
    $(d)
    .on('click', '.js-scroll', function(e) {
      var tag = $(this).data('tag');
      $(tag).animate({
        scrollTop: bottom + 'px'
      }, 300);
      return false;
    })
    .on('click', '#bottom', function(e) {
      // if use $('body, html') Callback is executed twice 
      $('body, html').animate({
        scrollTop: 0
      }, 300, function(e) {
        alert('callback');
      });
    });
    
    checkScrollTag();
  });
}(jQuery, window, document);
            
          
!
999px

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