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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>
  <p>Inspiration: https://css-tricks.com/slider-with-sliding-backgrounds/</p>
  <ul class="slider" lang="fi">
    <li id="weather_helsinki" class="slider__slide">
      <h3 class="slider__title">Helsinki</h3>
      <abbr class="slider__temperature" title="20 astetta">20°</abbr>
    </li>
    <li id="weather_hyvinkaa" class="slider__slide slider__slide--active">
      <h3 class="slider__title">Hyvinkää</h3>
      <abbr class="slider__temperature" title="24 astetta">24°</abbr>
    </li>
    <li id="weather_pello" class="slider__slide">
      <h3 class="slider__title">Pello</h3>
      <abbr class="slider__temperature" title="25 astetta">25°</abbr>
    </li>
  </ul>
  <ul>
    <li><a href="#weather_helsinki">Helsinki</a></li>
    <li><a href="#weather_hyvinkaa">Hyvinkää</a></li>
    <li><a href="#weather_pello">Pello</a></li>
  </ul>
</div>
<div>
  <p>Multiple just so you can see this is properly done.</p>
  <ul class="slider">
    <li class="slider__slide">
      <h3 class="slider__title">London</h3>
      <abbr class="slider__temperature" title="20 degrees">20°</abbr>
    </li>
    <li class="slider__slide">
      <h3 class="slider__title">Berlin</h3>
      <abbr class="slider__temperature" title="24 degrees">24°</abbr>
    </li>
    <li class="slider__slide slider__slide--active">
      <h3 class="slider__title">Paris</h3>
      <abbr class="slider__temperature" title="25 degrees">25°</abbr>
    </li>
    <li class="slider__slide">
      <h3 class="slider__title">Moscow</h3>
      <abbr class="slider__temperature" title="15 degrees">15°</abbr>
    </li>
    <li class="slider__slide">
      <h3 class="slider__title">Sydney</h3>
      <abbr class="slider__temperature" title="34 degrees">34°</abbr>
    </li>
    <li class="slider__slide">
      <h3 class="slider__title">Tokyo</h3>
      <abbr class="slider__temperature" title="35 degrees">35°</abbr>
    </li>
  </ul>
</div>
            
          
!
            
              @import url(https://fonts.googleapis.com/css?family=Josefin+Slab:100);

/* unimportant */
body {
  background: #212121;
}

div {
  background: #C1C1C1;
  border-radius: 2em;
  float: left;
  margin: 1em;
  padding: .5em;
}

/* we have no extra "slider container" here! */
.slider {
  font-family: 'Josefin Slab', sans-serif;
  /* this color is what you see when slides fade in or out */
  background: black;
  /* for our scroll magic */
  overflow: hidden;
  /* remove this if you want to hide the scrollbar */
  overflow-x: auto;
  /* list style resets */
  margin: 0 auto;
  padding: 0;
  /* just to throw text up on the same line */
  vertical-align: text-top;
  /* remove space between inline-blocks */
  font-size: 0;
  white-space: nowrap;
}

/* just to avoid replicating some stuff */
.slider,
.slider__slide {
  /* this is required for JavaScript or you get incorrect scrollLeft values */
  position: relative;
  /* the size of the thing */
  width: 300px;
  height: 500px;
}

/* there are a lot of dynamic effects here, it can be overkill for some devices */
.slider__slide {
  /* cooler than the over abused floats! */
  display: inline-block;
  /* we must restore font size */
  font-size: xx-large;
  color: white;
  text-indent: 25px;
  /* visual appeal stuff! */
  text-shadow: 1px 1px 1px black;
  box-shadow: inset 0 0 35px black;
  opacity: .5;
  transition: opacity .2s ease-in;
}

/* this does the between slides fade in */
.slider__slide--active {
  opacity: 1;
}

/* arrows on :hover */
.slider__slide:not(:first-child):before,
.slider__slide:not(:last-child):after {
  border: 1.5em solid transparent;
  content: '';
  display: block;
  margin-top: -1.5em;
  opacity: 0;
  transition: opacity .5s ease-in 250ms;
  position: absolute;
  top: 50%;
  height: 0;
  width: 0;
  pointer-events: none;
}

.slider__slide:not(:first-child):before {
  border-right-color: white;
  left: -1.25em;
}

.slider__slide:not(:last-child):after {
  border-left-color: white;
  right: -1.25em;
}

.slider__slide--active:hover:before,
.slider__slide--active:hover:after {
  opacity: .3;
}

/* essentially replicates the size of the slide */
.slider__title {
  /* creates the fade to black in bottom of the slide */
  background: linear-gradient(to top, black, rgba(0, 0, 0, .5) 34%, transparent);
  font-size: smaller;
  font-weight: normal;
  /* careful alignment to match height of the slide */
  margin: 300px 0 0 0;
  padding: 50px 0 100px 0;
  height: 50px;
  line-height: 50px;
  /* may do something some day */
  pointer-events: none;
}

/* negative margin so no effect to the size of the slide */
.slider__temperature {
  /* attr element reset */
  border: 0;
  display: block;
  /* big looks good! */
  font-size: 250%;
  /* careful alignment to match 100px height */
  margin: -100px 0 0 0;
  height: 75px;
  line-height: 75px;
  padding-bottom: 25px;
  /* may do something some day */
  pointer-events: none;
}

/*
  Certainly not the best way to identify your slides.
  Use IDs or additional classes or something.
  Makes yer life a tad bit easier, eh?
  Images here are 400px * 500px
*/

div:nth-of-type(1)
.slider__slide:nth-child(1) {
  background-image: url('http://placekitten.com/400/500?image=12');
}

div:nth-of-type(1)
.slider__slide:nth-child(2) {
  background-image: url('http://placekitten.com/400/500?image=13');
}

div:nth-of-type(1)
.slider__slide:nth-child(3) {
  background-image: url('http://placekitten.com/400/500?image=15');
}

div:nth-of-type(2)
.slider__slide:nth-child(1) {
  background-image: url('http://placekitten.com/400/500?image=7');
}

div:nth-of-type(2)
.slider__slide:nth-child(2) {
  background-image: url('http://placekitten.com/400/500?image=3');
}

div:nth-of-type(2)
.slider__slide:nth-child(3) {
  background-image: url('http://placekitten.com/400/500?image=5');
}

div:nth-of-type(2)
.slider__slide:nth-child(4) {
  background-image: url('http://placekitten.com/400/500?image=6');
}

div:nth-of-type(2)
.slider__slide:nth-child(5) {
  background-image: url('http://placekitten.com/400/500?image=2');
}

div:nth-of-type(2)
.slider__slide:nth-child(6) {
  background-image: url('http://placekitten.com/400/500?image=1');
}
            
          
!
            
              // find all .slider elements (i = 0)
(function(sliders, i, activeClass) {
  // go through each slider
  while(sliders[i]) {
    // get all slides of a slider
    (function(slider, slides) {
      /*
        Slide background width overflow:
        - 300px width slides
        - 400px width background images
        - 100px overflow
        - 300 / 100 = 3
      */
      var overflowRatio = 3,
          // onwheel normalize helper
          minDeltaY,
          // prepend with space
          addActiveClass = ' ' + activeClass,
          // match active class
          activeClassMatch = new RegExp(addActiveClass, 'g'),
          // element to scroll to (= "active" slide)
          closestToScrollTo = slides[0],
          // timeout for auto scroll
          scrollTimeout,
          // interval when scrolling
          scrollingInterval,
          // auto scroll function
          scrollingToClosest = function() {
            // calculate a distance to move
            var distance = ~~((closestToScrollTo.offsetLeft - slider.scrollLeft) / 8);
            // see if we end the scroll
            if(Math.abs(distance) < 1) {
              // just set the exact position to go to
              slider.scrollLeft = closestToScrollTo.offsetLeft;
              // use timeout to avoid unnecessary extra event
              setTimeout(function() {
                // now this happens after slider.onscroll event
                clearInterval(scrollingInterval);
                scrollingInterval = undefined;
              }, 0);
            } else {
              // we auto scroll!
              slider.scrollLeft += distance;
            }
          },
          // this finds the closest element to scroll to
          scrollToClosest = function() {
            scrollTimeout = undefined;
            // remove existing auto scroll
            if(scrollingInterval) clearInterval(scrollingInterval);
            scrollingInterval = setInterval(scrollingToClosest, 10);
          }
      // WTF why somebody uses this?!?
      slider.onscroll = function() {
        var sliderLeft = slider.scrollLeft,
            distance, nearestDistance,
            currentActive = closestToScrollTo;
        // are we auto scrolling already?
        if(!scrollingInterval) {
          closestToScrollTo = undefined;
          // loop through all slides
          for(var i = 0; slides[i]; i++)
            (function(slide) {
              // do the neat sliding background effect
              slide.style.backgroundPosition = ~~((sliderLeft - slide.offsetLeft) / overflowRatio) + 'px 0';
              // also find the closest one: calculate distance
              distance = Math.abs(sliderLeft - slide.offsetLeft);
              if(!closestToScrollTo || distance < nearestDistance) {
                nearestDistance = distance;
                closestToScrollTo = slide;
              }
            })(slides[i]);
          // only change class if element has changed
          if(closestToScrollTo !== currentActive) {
            // remove active class
            currentActive.className = (
              ' ' + currentActive.className + ' '
            ).replace(activeClassMatch, '').trim();
            // add active class
            closestToScrollTo.className += addActiveClass;
          }
          // remove existing timeout if have one
          if(scrollTimeout) clearTimeout(scrollTimeout);
          // set timeout for auto scroll to position
          scrollTimeout = setTimeout(scrollToClosest, 150);
        } else {
          // loop through all slides
          for(var i = 0; slides[i]; i++)
            (function(slide) {
              // do the neat sliding background effect
              slide.style.backgroundPosition = ~~((sliderLeft - slide.offsetLeft) / overflowRatio) + 'px 0';
            })(slides[i]);
        }
      };
      // WTF somebody using this again?
      slider.onwheel = function(e) {
        // we want to eliminate vertical scrolling
        if (e.deltaY) {
          // normalize
          if (minDeltaY > Math.abs(e.deltaY) || !minDeltaY) {
            minDeltaY = Math.abs(e.deltaY);
          }
          // scroll a decent amount
          slider.scrollLeft += (e.deltaY / minDeltaY)
          * ((slider.scrollWidth - slider.clientWidth) / slides.length / 10);
          // do not let other wheel events to fire
          e.stopPropagation();
          e.cancelBubble = true; // same for old IE
          // and we don't want the default action either
          e.preventDefault();
          e.returnValue = false; // same for old IE
          // remove existing auto scroll
          if(scrollingInterval) {
            // doing this fixes some jerky behavior
            clearInterval(scrollingInterval);
            scrollingInterval = undefined;
          }
        }
      };
      // support browsers that do not support DOM Level 3 wheel
      slider.onmousewheel = function(e) {
        // old Internet Explorer
        if (!e) e = window.event;
        // we normalize the value so no need to guess how to convert
        e.deltaY = -e.wheelDelta;
        // we have done enough
        slider.onwheel(e);
      };
      var activeSlides = slider.getElementsByClassName(activeClass);
      // see if active has been set
      if(activeSlides.length === 1) {
        // found an active one
        closestToScrollTo = activeSlides[0];
      } else {
        // set initial active class to the first slide
        closestToScrollTo.className += addActiveClass;
      }
      // scroll to active
      scrollToClosest();
      // alternative: immediate scroll
      // slider.scrollLeft = closestToScrollTo.offsetLeft;
    })(
     sliders[i],
     sliders[i++].getElementsByClassName('slider__slide')
    ); // immediate function
  } // while
})(
  document.getElementsByClassName('slider'),
  0,
  'slider__slide--active'
); // immediate function
            
          
!
999px
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