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HTML 

              
                <!--For our animations to look good, the animated elements need to be able to be scrolled to. For this example I've added dummy content to the top -->
<div class="main-container">
  <div class="container">
    <h1>Multi-step animation</h1>
    <p>This animation will focus on fade in and up an element when it comes into the focus of the viewer. </p>
  </div>
  <div class="container">
    <h2>Gallery Images</h2>
    <p>Here we keep some of our latest images and designs. </p>
  </div>

  <div class="container cf">
    <!-- Staff 1 -->
    <div class="animation-element multi-step-left cf">
      <div class="gallery">
        <h3 class="title">Johnthon Smith</h3>
        <h4 class="subtitle">Senior Enginer</h4>
        <div class="image" style="background-image: url(https://drive.google.com/uc?export=download&id=0B7UPM0QugWUjVTdZcktRTWhNamM)">
          <div class="social">
            <i class="fa fa-facebook"></i>
            <i class="fa fa-twitter"></i>
            <i class="fa fa-google-plus"></i>
            <i class="fa fa-envelope"></i>
          </div>
        </div>
        <h5 class="image-caption">
          <i class="fa fa-quote-left"></i>
          Always find something new to learn every day
          <i class="fa fa-quote-right"></i>
        </h5>
        <div class="readmore">View profile</i>
          </i>
        </div>
      </div>
    </div>
    <!-- Staff 2 -->
    <div class="animation-element multi-step-right cf">
      <div class="gallery">
        <h3 class="title">Jillian Jules</h3>
        <h4 class="subtitle">Marketing</h4>
        <div class="image" style="background-image: url(https://drive.google.com/uc?export=download&id=0B7UPM0QugWUjb1dxcGZEYUc0Z3M)">
          <div class="social">
            <i class="fa fa-facebook"></i>
            <i class="fa fa-twitter"></i>
            <i class="fa fa-google-plus"></i>
            <i class="fa fa-envelope"></i>
          </div>
        </div>
        <h5 class="image-caption">
          <i class="fa fa-quote-left"></i>
          Find new creative areas to expand
          <i class="fa fa-quote-right"></i>
        </h5>
        <div class="readmore">View profile</i>
          </i>
        </div>
      </div>
    </div>
    <!-- Staff 3 -->
    <div class="animation-element multi-step-left cf">
      <div class="gallery">
        <h3 class="title">James O'Keffe</h3>
        <h4 class="subtitle">Manager</h4>
        <div class="image" style="background-image: url(https://drive.google.com/uc?export=download&id=0B7UPM0QugWUjTURta0pyMEtoUmc)">
          <div class="social">
            <i class="fa fa-facebook"></i>
            <i class="fa fa-twitter"></i>
            <i class="fa fa-google-plus"></i>
            <i class="fa fa-envelope"></i>
          </div>
        </div>
        <h5 class="image-caption">
          <i class="fa fa-quote-left"></i>
          Expanding possibilities with determination
          <i class="fa fa-quote-right"></i>
        </h5>
        <div class="readmore">View profile</i>
          </i>
        </div>
      </div>
    </div>
    <!-- Staff 4 -->
    <div class="animation-element multi-step-right cf">
      <div class="gallery">
        <h3 class="title">Vivian Rymer</h3>
        <h4 class="subtitle">HR</h4>
        <div class="image" style="background-image: url(https://drive.google.com/uc?export=download&id=0B7UPM0QugWUjV3BseTMtcEU1T2M)">
          <div class="social">
            <i class="fa fa-facebook"></i>
            <i class="fa fa-twitter"></i>
            <i class="fa fa-google-plus"></i>
            <i class="fa fa-envelope"></i>
          </div>
        </div>
        <h5 class="image-caption">
          <i class="fa fa-quote-left"></i>
          Increasing skills, determination and workplace unity
          <i class="fa fa-quote-right"></i>
        </h5>
        <div class="readmore">View profile</i>
          </i>
        </div>
      </div>
    </div>

  </div>
!

CSS 

              
                /*These styles contain basic styles for fomatting along with our animation css*/

body {
  font-size: 16px;
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;
  background: #efefef;
  line-height: 170%;
  overflow-x: hidden;
}

strong,
b {
  font-weight: 600
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 300;
  line-height: 150%;
}

*,
*:before,
*:after {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-box-sizing: border-box;
}
/*clearfixes*/

.cf:before,
.cf:after {
  content: " ";
  display: table;
}

.cf:after {
  clear: both;
}

.main-container {
  background: #fff;
  max-width: 1000px;
  margin: 25px auto 25px auto;
  position: relative;
}

.container {
  position: relative;
  padding: 25px;
}

.container:last-of-type {
  padding-top: 0px;
}
/*animation element*/

.animation-element {
  position: relative;
  width: 22%;
  margin: 0% 1.5% 3% 1.5%;
  float: left;
}
/*4 grid layout*/

.animation-element:nth-of-type(4n-3) {
  clear: left;
}

.animation-element:nth-of-type(4n-2) {}

.animation-element:nth-of-type(4n-1) {}

.animation-element:nth-of-type(4n-0) {
  clear: right;
}
/*left fancy animastion*/

@-moz-keyframes left_animation {
  0% {
    opacity: 0;
    -moz-transform: rotate(180deg) translate3d(100%, 100%, 0);
  }
  75% {
    opacity: 0.8;
    -moz-transform: rotate(-40deg);
  }
  100% {
    opacity: 1;
    -moz-transform: rotate(0deg) translate3d(0%, 0%, 0);
  }
}

@-webkit-keyframes left_animation {
  0% {
    opacity: 0;
    -webkit-transform: rotate(180deg) translate3d(100%, 100%, 0);
  }
  75% {
    opacity: 0.8;
    -webkit-transform: rotate(-40deg);
  }
  100% {
    opacity: 1;
    -webkit-transform: rotate(0deg) translate3d(0%, 0%, 0);
  }
}

@keyframes left_animation {
  0% {
    opacity: 0;
    transform: rotate(180deg) translate3d(100%, 100%, 0);
  }
  75% {
    opacity: 0.8;
    transform: rotate(-40deg);
  }
  100% {
    opacity: 1;
    transform: rotate(0deg) translate3d(0%, 0%, 0);
  }
}
/*right fancy animation*/

@-moz-keyframes right_animation {
  0% {
    opacity: 0;
    -moz-transform: rotate(180deg) translate3d(-100%, -100%, 0);
  }
  75% {
    opacity: 0.8;
    -moz-transform: rotate(40deg);
  }
  100% {
    opacity: 1;
    -moz-transform: rotate(0deg) translate3d(0%, 0%, 0);
  }
}

@-webkit-keyframes right_animation {
  0% {
    opacity: 0;
    -webkit-transform: rotate(180deg) translate3d(-100%, 100%, 0);
  }
  75% {
    opacity: 0.8;
    -webkit-transform: rotate(40deg);
  }
  100% {
    opacity: 1;
    -webkit-transform: rotate(0deg) translate3d(0%, 0%, 0);
  }
}

@keyframes right_animation {
  0% {
    opacity: 0;
    transform: rotate(180deg) translate3d(-100%, -100%, 0);
  }
  75% {
    opacity: 0.8;
    transform: rotate(40deg);
  }
  100% {
    opacity: 1;
    transform: rotate(0deg) translate3d(0%, 0%, 0);
  }
}
/*Multi-step animation*/

.multi-step-left .gallery,
.multi-step-right .gallery {
  position: relative;
  opacity: 0;
  /*prevents flicker as animation occurs*/
}

.multi-step-left.in-view .gallery {
  -moz-animation: left_animation 1300ms ease-in both;
  -webkit-animation: left_animation 1300ms ease-in both;
  animation: left_animation 1300ms ease-in both;
}

.multi-step-right.in-view .gallery {
  -moz-animation: right_animation 1300ms linear both;
  -webkit-animation: right_animation 1300ms linear both;
  animation: right_animation 1300ms linear both;
}

.gallery {
  float: left;
  width: 100%;
  height: auto;
  margin: 0% 1.33% 2.66% 1.33%;
}

.gallery .image {
  background: #F5F5F5;
  border: solid 1px #EAEAEA;
  height: 0px;
  width: 80%;
  width: calc(100% - 40px);
  padding-bottom: 100%;
  padding-bottom: calc(100% - 40px);
  background-size: cover;
  background-position: bottom center;
  position: relative;
  border-radius: 50%;
  margin-bottom: 10px;
}

.gallery:hover .image,
.gallery:active .image {}

.gallery .image-caption {
  position: relative;
  background: #fff;
  background: #efefef;
  color: #333;
  font-size: 95%;
  padding: 10px;
  margin: 0px 0px 10px 0px;
}

.gallery .image-caption i {
  color: #aaa;
  margin: 0px 7px 0px 0px;
  display: inline-block;
}

.gallery .image-caption i:last-child {
  margin: 0px 0px 0px 7px;
}

.gallery .readmore {
  padding: 5px 12px;
  cursor: pointer;
  text-align: center;
  background: #2c3e50;
  color: #fff;
  font-size: 90%;
  -moz-transition: all 350ms ease;
  -o-transition: all 350ms ease;
  -webkit-transition: all 350ms ease;
  transition: all 350ms ease;
}

.gallery .readmore:hover,
.gallery .readmore:active {
  background: #34495e;
}

.gallery .title {
  margin: 0px 0px 5px 0px;
  text-align: center;
  color: #2c3e50;
  font-weight: 400;
}

.gallery .subtitle {
  margin: 0px 0px 10px 0px;
  text-align: center;
}

.gallery .social {
  position: absolute;
  top: 0px;
  right: -40px;
  width: calc(35px);
}

.gallery .social i {
  width: 100%;
  display: block;
  text-align: center;
  height: 35px;
  font-size: 125%;
  background: #2c3e50;
  line-height: 35px;
  border-radius: 50%;
  color: rgb(255, 255, 255);
  margin-bottom: 5px;
  cursor: pointer;
  -moz-transition: all 350ms ease;
  -o-transition: all 350ms ease;
  -webkit-transition: all 350ms ease;
  transition: all 350ms ease;
}

.gallery .social i:hover,
.gallery .social i:active {
  background: #34495e;
}
/*media queries for small devices*/

@media screen and (max-width: 678px) {
  .main-container {
    margin: 25px;
  }
  .animation-element,
  .animation-element:nth-of-type(4n-3),
  .animation-element:nth-of-type(4n-2),
  .animation-element:nth-of-type(4n-1),
  .animation-element:nth-of-type(4n-0) {
    width: 100%;
    margin: 0% 0% 25px 0%;
  }
}
!

JS 

              
                var $animation_elements = $('.animation-element');
var $window = $(window);

function check_if_in_view() {
  var window_height = $window.height();
  var window_top_position = $window.scrollTop();
  var window_bottom_position = (window_top_position + window_height);

  $.each($animation_elements, function() {
    var $element = $(this);
    var element_height = $element.outerHeight();
    var element_top_position = $element.offset().top;
    var element_bottom_position = (element_top_position + element_height);

    //check to see if this current container is within viewport
    if ((element_bottom_position >= window_top_position) &&
      (element_top_position <= window_bottom_position)) {
      $element.addClass('in-view');
    } else {
      $element.removeClass('in-view');
    }
  });
}

$window.on('scroll resize', check_if_in_view);
$window.trigger('scroll');
!
999px

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