body {
  font-family: 'Source Sans Pro',Helvetica Neue,Helvetica,Arial,sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

#timeline {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  background-color: #031625;
}
#timeline:hover .tl-item {
  width: 23.3333%;
}

.tl-item {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  position: relative;
  width: 55%;
  height: 100vh;
  min-height: 600px;
  color: #fff;
  overflow: hidden;
  -webkit-transition: width 0.5s ease;
  transition: width 0.5s ease;
}
.tl-item:before, .tl-item:after {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}
.tl-item:after {
  background: rgba(3, 22, 37, 0.85);
  opacity: 1;
  -webkit-transition: opacity 0.5s ease;
  transition: opacity 0.5s ease;
}
.tl-item:before {
  background: -webkit-linear-gradient(top, transparent 0%, black 75%);
  background: linear-gradient(to bottom, transparent 0%, black 75%);
  z-index: 1;
  opacity: 0;
  -webkit-transform: translate3d(0, 0, 0) translateY(50%);
          transform: translate3d(0, 0, 0) translateY(50%);
  -webkit-transition: opacity 0.5s ease, -webkit-transform 0.5s ease;
  transition: opacity 0.5s ease, -webkit-transform 0.5s ease;
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition: opacity 0.5s ease, transform 0.5s ease, -webkit-transform 0.5s ease;
}
.tl-item:hover {
  width: 60% !important;
}
.tl-item:hover:after {
  opacity: 0;
}
.tl-item:hover:before {
  opacity: 1;
  -webkit-transform: translate3d(0, 0, 0) translateY(0);
          transform: translate3d(0, 0, 0) translateY(0);
  -webkit-transition: opacity 1s ease, -webkit-transform 1s ease 0.25s;
  transition: opacity 1s ease, -webkit-transform 1s ease 0.25s;
  transition: opacity 1s ease, transform 1s ease 0.25s;
  transition: opacity 1s ease, transform 1s ease 0.25s, -webkit-transform 1s ease 0.25s;
}
.tl-item:hover .tl-content {
  opacity: 1;
  -webkit-transform: translateY(0);
          transform: translateY(0);
  -webkit-transition: all 0.75s ease 0.5s;
  transition: all 0.75s ease 0.5s;
}
.tl-item:hover .tl-bg {
  -webkit-filter: grayscale(0);
          filter: grayscale(0);
}

.tl-content {
  -webkit-transform: translate3d(0, 0, 0) translateY(25px);
          transform: translate3d(0, 0, 0) translateY(25px);
  position: relative;
  z-index: 1;
  text-align: left;
  margin: 0 1.618em;
  top: 7%;
  opacity: 0;
  font-size: 0.2vh;
}
.tl-content h1 {
  font-family: 'Pathway Gothic One',Helvetica Neue,Helvetica,Arial,sans-serif;
  text-transform: uppercase;
  color: #ffffff;
  font-size: 4.0vh;
  font-weight: normal;
}

.tl-year {
  position: absolute;
  top: 5%;
  left: 50%;
  -webkit-transform: translateX(-50%) translateY(-50%);
          transform: translateX(-50%) translateY(-50%);
  z-index: 1;
  border-top: 1px solid #fff;
  border-bottom: 1px solid #fff;
}
.tl-year p {
  font-family: 'Pathway Gothic One',Helvetica Neue,Helvetica,Arial,sans-serif;
  font-size: 3.0vh;
  line-height: 0;
  margin:20px 8px 25px
}

.tl-bg {
  -webkit-transform: translate3d(0, 0, 0);
          transform: translate3d(0, 0, 0);
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-size: cover;
  background-position: center center;
  -webkit-transition: -webkit-filter 0.5s ease;
  transition: -webkit-filter 0.5s ease;
  transition: filter 0.5s ease;
  transition: filter 0.5s ease, -webkit-filter 0.5s ease;
  -webkit-filter: grayscale(100%);
          filter: grayscale(100%);
}


#slider-wrapper {
    background: #fff;
    display: block;
    width: 100%;
    min-height: 70px;
    margin: auto;
    position: relative;
}

#slider {
    width: 90%;
    height: 90%;
    overflow: hidden;
    position: relative;
    margin: 40px 0 80px 0;
}

#slider > ul {
    list-style: none;
    height: 100%;
    width: 500%;
    overflow: hidden;
    position: relative;
    left: 0;
    -webkit-transition: left .5s;
    transition: left .5s;
}

#slider > ul > li {
    width: 20%;
    float: left;
    position: relative;
    padding: 30px;
}

#slider > ul > li > img {
    margin: auto;
    width: 100%;
}

#slider-wrapper input[type=radio] {
    position: absolute;
    left: 50%;
    bottom: 15px;
    z-index: 100;
    visibility: hidden;
}

#slider-wrapper label {
    position: absolute;
    left: 50%;
    bottom: -30px;
    z-index: 100;
    width: 15px;
    height: 15px;
    background: #222;
    cursor: pointer;
    -webkit-transition: background-color .5s;
    transition: background-color .5s;
}

#slider-wrapper #button-1:checked ~ label[for=button-1] {
    background: #888;
}

#slider-wrapper #button-2:checked ~ label[for=button-2] {
    background: #888;
}

#slider-wrapper #button-3:checked ~ label[for=button-3] {
    background: #888;
}

#slider-wrapper #button-4:checked ~ label[for=button-4] {
    background: #888;
}

#slider-wrapper #button-5:checked ~ label[for=button-5] {
    background: #888;
}

#slider-wrapper label[for=button-1] {
    margin-left: -40px;
}

#slider-wrapper label[for=button-2] {
    margin-left: -20px;
}

#slider-wrapper label[for=button-4] {
    margin-left: 20px;
}

#slider-wrapper label[for=button-5] {
    margin-left: 40px;
}

#slider-wrapper #button-1:checked ~ #slider > ul {
    left: 0;
}

#slider-wrapper #button-2:checked ~ #slider > ul {
    left: -100%;
}

#slider-wrapper #button-3:checked ~ #slider > ul {
    left: -200%;
}

#slider-wrapper #button-4:checked ~ #slider > ul {
    left: -300%;
}

#slider-wrapper #button-5:checked ~ #slider > ul {
    left: -400%;
}