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HTML 

              
                <html>
  
  <head></head>
  <body>
<section class="intro">
  <div class="container">
    <h1>My Life &darr;</h1>
    <h5>Scroll Down</h5>
  </div>
</section>

<section class="timeline">
  <ul>
    <li>
      <div>
        <time>1993</time><img id="meBaby" src="http://i1356.photobucket.com/albums/q729/eleftheria_b/my%20face/babyMe_zps3ku1takx.jpg"/><br>Born in Greece in a hot noon of mid-summer
      </div>
    </li>
    <li>
      <div>
        <time>1998-2011</time><img class="photos" src="http://www.westperry.org/cms/lib/PA09000117/Centricity/Domain/51/school.gif"/><br>Went to school in many different places in Greece. We had to move a lot due to mama's job.
      </div>
    </li>
    <li>
      <div>
        <time>2012-2016</time><img class="photos" src="https://eclass.uowm.gr/courses/theme_data/3/uowm-logo_1.png"/><br> Study at the university of Western Macedonia in Greece.
      </div>
    </li>
    <li>
      <div>
        <time>2016</time><img class="photos" src="http://i1356.photobucket.com/albums/q729/eleftheria_b/my%20face/3_eleftheria_zpsjwpxlvm7.jpg"/><br>  Graduade as an Engineer of Informatics and Telecommunications
      </div>
    </li>
    <li>
      <div>
        <time>2017</time><img class="photos" src="http://i1356.photobucket.com/albums/q729/eleftheria_b/my%20face/IMG-20161208-WA0006_zpsnpvm7kko.jpg"/><br>Been for a couples of months in Amsterdam to internship in a cool start-up company!
      </div>
    </li>
    
    <li>
      <div>
        <time>Find me!</time><h5><a href="http://www.eleftheriabatsou.com" target="_blank">Eleftheria</a> | <a href="https://codepen.io/EleftheriaBatsou" target="_blank">Projects</a> | <a href="https://www.youtube.com/channel/UCC-WwYv3DEW7Nkm_IP6VeQQ" target="_blank"> Coding videos </a></h5>
      </div>
    </li>
    
    
  </ul>
  
  
  
</section>
  </body>
  </html>
!

CSS 

              
                *,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

$BG-color: #AD1457; /* dark pink for the bg-color */
$box-color: #00838F; /*dark cayn for the boxes */
$font-color: #F8BBD0; /* light pink  for the words*/

body {
  font: normal 16px/1.5 "Helvetica Neue", sans-serif;
  background: $BG-color;
  color: $font-color;
  overflow-x: hidden;
  padding-bottom: 50px;
}  

/* INTRO SECTION
–––––––––––––––––––––––––––––––––––––––––––––––––– */

.intro {
  background: $box-color;
  padding: 100px 0;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
}


/* TIMELINE
–––––––––––––––––––––––––––––––––––––––––––––––––– */

.timeline ul {
  background: $BG-color;
  padding: 50px 0;
}

.timeline ul li {
  list-style-type: none;
  position: relative;
  width: 10px;
  margin: 0 auto;
  padding-top: 50px;
  background: $font-color;
}

.timeline ul li::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: inherit;
}

.timeline ul li div {
  position: relative;
  bottom: 0;
  width: 400px;
  padding: 15px;
  background: $box-color;
}

.timeline ul li div::before {
  content: '';
  position: absolute;
  bottom: 7px;
  width: 0;
  height: 0;
  border-style: solid;
}

.timeline ul li:nth-child(odd) div {
  left: 45px;
}

.timeline ul li:nth-child(odd) div::before {
  left: -15px;
  border-width: 8px 16px 8px 0;
  border-color: transparent $box-color transparent transparent;
}

.timeline ul li:nth-child(even) div {
  left: -439px;
}

.timeline ul li:nth-child(even) div::before {
  right: -15px;
  border-width: 8px 0 8px 16px;
  border-color: transparent transparent transparent $box-color;
}

time {
  display: block;
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 8px;
}


/* EFFECTS
–––––––––––––––––––––––––––––––––––––––––––––––––– */

.timeline ul li::after {
  transition: background .5s ease-in-out;
}

.timeline ul li.in-view::after {
  background: $box-color;
}

.timeline ul li div {
  visibility: hidden;
  opacity: 0;
  transition: all .5s ease-in-out;
}

.timeline ul li:nth-child(odd) div {
  transform: translate3d(200px, 0, 0);
}

.timeline ul li:nth-child(even) div {
  transform: translate3d(-200px, 0, 0);
}

.timeline ul li.in-view div {
  transform: none;
  visibility: visible;
  opacity: 1;
}


/* GENERAL MEDIA QUERIES
–––––––––––––––––––––––––––––––––––––––––––––––––– */

@media screen and (max-width: 900px) {
  .timeline ul li div {
    width: 250px;
  }
  .timeline ul li:nth-child(even) div {
    left: -289px;
    /*250+45-6*/
  }
}

@media screen and (max-width: 600px) {
  .timeline ul li {
    margin-left: 20px;
  }
  .timeline ul li div {
    width: calc(100vw - 91px);
  }
  .timeline ul li:nth-child(even) div {
    left: 45px;
  }
  .timeline ul li:nth-child(even) div::before {
    left: -15px;
    border-width: 8px 16px 8px 0;
    border-color: transparent $box-color transparent transparent;
  }
}


/////////////////////////
// my photo in the snow
///////////////////////
#meBaby{
  width: 100px;
  height: 135px;
}

.photos{
  width: 100px;
  height: auto;
}
a:visited { color: $font-color;}
a:hover { color: #AD1457;}
!

JS 

              
                (function() {

  'use strict';

  // define variables
  var items = document.querySelectorAll(".timeline li");

  // check if an element is in viewport
  // http://stackoverflow.com/questions/123999/how-to-tell-if-a-dom-element-is-visible-in-the-current-viewport
  function isElementInViewport(el) {
    var rect = el.getBoundingClientRect();
    return (
      rect.top >= 0 &&
      rect.left >= 0 &&
      rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
      rect.right <= (window.innerWidth || document.documentElement.clientWidth)
    );
  }

  function callbackFunc() {
    for (var i = 0; i < items.length; i++) {
      if (isElementInViewport(items[i])) {
        items[i].classList.add("in-view");
      }
    }
  }

  // listen for events
  window.addEventListener("load", callbackFunc);
  window.addEventListener("resize", callbackFunc);
  window.addEventListener("scroll", callbackFunc);

})();
!
999px

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