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HTML

              
                -var baseURL = 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/544318/'

-var info = [{ 
-    city: 'Venice',
-    country: 'Italy',
-    population: '260,060',
-    founded: '697',
-    image: baseURL + 'venice.jpg',
-    emblem: baseURL + 'italian-emblem.svg'
-  }, {
-    city: 'Paris',
-    country: 'France',
-    population: '2.2 Million',
-    founded: '~250BC',
-    image: baseURL + 'paris.jpg',
-    emblem: baseURL + 'french-emblem.svg'
-  }, {
-    city: 'Salzburg',
-    country: 'Austria',
-    population: '145,871',
-    founded: '1622',
-    image: baseURL + 'salzburg.jpg',
-    emblem: baseURL + 'austrian-emblem.svg'
-  }, {
-    city: 'Prague',
-    country: 'Czech Republic',
-    population: '1.2 Million',
-    founded: '870',
-    image: baseURL + 'prague.jpg',
-    emblem: baseURL + 'czech-emblem.svg' 
-}]

#container
	each item in info
		.slide.anim-in
			.image(style='background-image: url(' + item.image + ');')
			.overlay
			.content
				h1.title(data-title=item.city)= item.city
				.emblem(style='background-image: url(' + item.emblem + ');')
				ul.city-info
					li.country= 'Country: ' + item.country
					li.founded= 'Founded: ' + item.founded
					li.population= 'Population: ' + item.population
			.btn-close
a#codepen-link(href='https://www.codepen.io/seanfree' target='_blank')
              
            
!

CSS

              
                html, body {
  height: 100vh;
  width: 100vw;
  box-sizing: border-box;
}

body {
  background: #1f1f1f;
  font-family: "Open Sans Condensed", sans-serif;
}

h1, h2, h3, h4 {
  font-family: "Abril Fatface", serif;
}

#container {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  width: 100%;
}

.slide {
  position: relative;
  flex: 1;
  height: 100%;
  overflow: hidden;
  cursor: pointer;
  transition: all 1.0s;

  &.last-viewed {
    .btn-close {
      &:after {
        transition-delay: 0s;
      }

      &:before {
        transition-delay: 0.1s;
      }
    }

    .content {
      .city-info {
        transition-delay: 0s;

        li {
          @for $i from 1 through 3 {
            &:nth-of-type(#{$i}) {
              transition-delay: $i * 0.2s;
            }
          }
        }
      }

      .emblem {
        transition: all 0.5s;
        transition-delay: 0s;
      }
    }
  }

  &.last-viewed, &.active {
    .image {
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
    }
  }

  &.active {
    cursor: default;

    .overlay {
      width: 25%;
      background-size: 100% 100%;
      transition: all 1.25s;
      transition-delay: 1.75s;
    }

    .content {
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;

      .title {
        width: 25%;
        opacity: 1;
        transform: translateY(30px);
        transition: all 1s;
        transition-delay: 1.25s;

        &:after {
          height: 100%;
          color: white;
          overflow: initial;
        }

        &:before {
          transform: scaleX(1);
          transition-delay: 2s;
        }
      }

      .city-info {
        opacity: 1;

        li {
          opacity: 1;
          transform: translateX(0);
        }
      }

      .emblem {
        opacity: 0.8;
        transform: translateY(100px);
      }
    }

    .btn-close {
      cursor: pointer;
      pointer-events: auto;

      &:before, &:after {
        opacity: 1;
      }

      &:after {
        transform: rotate(45deg) translateX(0px);
      }

      &:before {
        transform: rotate(-45deg) translateX(0px);
      }
    }
  }

  &.anim-in {
    transition-delay: 0.5s;

    .image {
      top: -20%;
      left: -140%;
      height: 140%;
      width: 140%;
      animation: img-anim-in 1.2s forwards;
    }
  }

  &.anim-out {
    flex: 0;
    cursor: default;
    transition-delay: 0.5s;

    .image {
      top: 0;
      left: 0;
      height: 100%;
      width: 100%;
      animation: img-anim-out 1.2s forwards;
    }
  }

  @for $i from 1 through 4 {
    &:nth-of-type(#{$i}) {
      &.anim-in {
        .image {
          animation-delay: $i * 0.2s;
        }
      }

      &.anim-out {
        .image {
          animation-delay: $i * 0.2s;
        }
      }
    }
  }

  .image {
    position: absolute;
    background-size: cover;
    background-position: center center;
    pointer-events: none;
    transition: all 1s;
  }

  .overlay {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background-image: linear-gradient(rgba(20, 20, 20, 0.7), rgba(20, 20, 20, 0));
    background-position: 0 0;
    background-size: 100% 200%;
    opacity: 1;
    pointer-events: none;
    transition: all 0.5s;
  }

  .content {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    pointer-events: none;

    .title {
      position: absolute;
      top: -10px;
      height: 65px;
      width: 100%;
      box-sizing: border-box;
      font-size: 3em;
      text-align: center;
      text-shadow: 0 2px 2px #2f2f2f;
      color: #3f3f3f;
      opacity: 0;
      pointer-events: none;
      transition: all 0.5s;

      &:after {
        position: absolute;
        top: 0;
        height: 0;
        width: 100%;
        display: block;
        content: attr(data-title);
        overflow: hidden;
        color: #fff59d;
        transition: all 0.85s;
      }

      &:before {
        position: absolute;
        bottom: 15px;
        display: block;
        content: "";
        height: 2px;
        width: 85%;
        background: white;
        box-shadow: 0 2px 6px #2f2f2f;
        transform-origin: left center;
        transform: scaleX(0);
        transition: transform 1.25s;
      }
    }

    .emblem {
      position: absolute;
      height: 200px;
      width: 25%;
      opacity: 0;
      transform: translateY(120px);
      transition: all 1s;
      transition-delay: 1.75s;
      background-position: center center;
      background-repeat: no-repeat;
      background-size: auto 100%;
    }

    .city-info {
      position: absolute;
      bottom: 30px;
      right: 30px;
      padding: 30px 30px 30px 120px;
      font-size: 1.25em;
      color: white;
      text-shadow: 0 1px 4px #0f0f0f;
      background-image: linear-gradient(90deg, rgba(20, 20, 20, 0), rgba(20, 20, 20, 0.7));
      opacity: 0;
      transition: all 1s;
      transition-delay: 2s;

      li {
        position: relative;
        margin-bottom: 5px;
        text-align: justify;
        opacity: 0;
        transform: translateX(-30px);
        transition: all 0.75s;

        @for $i from 1 through 3 {
          &:nth-of-type(#{$i}) {
            transition-delay: $i * 0.2s + 2.5s;
          }
        }
      }
    }
  }

  .btn-close {
    position: absolute;
    z-index: 100;
    top: 20px;
    right: 20px;
    height: 24px;
    width: 24px;
    pointer-events: none;

    &:before, &:after {
      position: absolute;
      top: 12px;
      display: block;
      content: "";
      width: 100%;
      height: 4px;
      background-color: white;
      opacity: 0;
      cursor: pointer;
      transition: all 0.5s;
    }

    &:after {
      transform: rotate(45deg) translateX(-12px);
      transition-delay: 3s;
    }

    &:before {
      transform: rotate(-45deg) translateX(12px);
      transition-delay: 3.2s;
    }
  }

  &:hover:not(.active):not(.anim-out) {
    .image {
      transform: scale(1.1);
    }

    .overlay {
      opacity: 0.6;
    }

    .content .title {
      opacity: 1;
      transform: translateY(30px);

      &:after {
        height: 100%;
      }
    }
  }
}

#codepen-link {
  position: absolute;
  right: 15px;
  bottom: 15px;
  height: 40px;
  width: 40px;
  z-index: 10;
  border-radius: 50%;
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/544318/logo.jpg");
  background-position: center center;
  background-size: cover;
  opacity: 0.7;
  transition: all 0.25s;

  &:hover {
    opacity: 1;
    box-shadow: 0 2px 6px #0f0f0f;
  }
}

@keyframes img-anim-in {
  to {
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
  }
}

@keyframes img-anim-out {
  to {
    left: -100%;
  }
}

              
            
!

JS

              
                (function(window, document, $, undefined) {
	var $slides, $btnArr;

	function onClick(e) {
		var $target = $(e.target);
		if ($target.hasClass('slide') && !$target.hasClass('active') && !$target.siblings().hasClass('active')) {
			$target.removeClass('anim-in last-viewed').addClass('active')
			$target.siblings().removeClass('anim-in last-viewed').addClass('anim-out');
		}
	}

	function closeSlide(e) {
		var $slide = $(e.target).parent();
		$slide.removeClass('active anim-in').addClass('last-viewed');
		$slide.siblings().removeClass('anim-out').addClass('anim-in');
	}

	$(function() {
		$slides = $('.slide');
		$btnArr = $slides.find('.btn-close');
		$slides.on('click', onClick);
		$btnArr.on('click', closeSlide);
	});
})(this, document, jQuery);
              
            
!
999px

Console