.cont {
    position: relative;
    height: 100vh;
    overflow: hidden;
  }

  .slider {
    position: relative;
    height: 100%;
    transform: translate3d(0, 0, 0);
    will-change: transform;
    cursor: all-scroll;
    -webkit-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
  }
  .slider.animation {
    transition: transform 750ms ease-in-out;
  }
  .slider.animation .slide__darkbg {
    transition: transform 750ms ease-in-out;
  }
  .slider.animation .slide__text {
    transition: transform 750ms ease-in-out;
  }
  .slider.animation .slide__letter {
    transition: transform 750ms ease-in-out;
  }

  .slide {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }
  .slide--1 {
    left: 0%;
  }
  .slide--2 {
    left: 100%;
  }
  .slide--3 {
    left: 200%;
  }
  .slide--4 {
    left: 300%;
  }
  .slide--5 {
    left: 400%;
  }
  .slide__darkbg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    transform: translate3d(0, 0, 0);
    will-change: transform;
    z-index: 10;
  }
  .slide__text-wrapper {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    z-index: 15;
  }
  .slide__letter {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: translate3d(0, 0, 0);
    -webkit-text-fill-color: transparent !important;
    -webkit-background-clip: text !important;
    font-size: 50vw;
    font-weight: 800;
    color: #000;
    z-index: 2;
    will-change: transform;
    -webkit-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
  }
  .slide__text {
    font-size: 8vw;
    font-weight: 800;
    text-transform: uppercase;
    transform: translate3d(0, 0, 0);
    letter-spacing: 12px;
    color: #fff;
    will-change: transform;
    -webkit-user-select: none;
       -moz-user-select: none;
        -ms-user-select: none;
            user-select: none;
  }
  .slide__text:nth-child(odd) {
    z-index: 2;
  }
  .slide__text:nth-child(even) {
    z-index: 1;
  }
  .slide--1__darkbg {
    left: 0%;
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--1-min-min.jpg") center center no-repeat;
    background-size: cover;
    background-position: 0px center, 0px center;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .slide--1__darkbg:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 39, 0.83);
  }
  .slide--1__letter {
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--1-min-min.jpg") center center no-repeat;
    background-position: 0px center, 0px center;
    background-size: cover;
  }
  .slide--2__darkbg {
    left: -50%;
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--2-min-min.jpg") center center no-repeat;
    background-size: cover;
    background-position: 0px center, 0px center;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .slide--2__darkbg:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 39, 0.83);
  }
  .slide--2__letter {
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--2-min-min.jpg") center center no-repeat;
    background-position: 0px center, 0px center;
    background-size: cover;
  }
  .slide--3__darkbg {
    left: -100%;
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--3-min-min.jpg") center center no-repeat;
    background-size: cover;
    background-position: 0px center, 0px center;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .slide--3__darkbg:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 39, 0.83);
  }
  .slide--3__letter {
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--3-min-min.jpg") center center no-repeat;
    background-position: 0px center, 0px center;
    background-size: cover;
  }
  .slide--4__darkbg {
    left: -150%;
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--4-min-min.jpg") center center no-repeat;
    background-size: cover;
    background-position: 0px center, 0px center;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .slide--4__darkbg:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 39, 0.83);
  }
  .slide--4__letter {
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--4-min-min.jpg") center center no-repeat;
    background-position: 0px center, 0px center;
    background-size: cover;
  }
  .slide--5__darkbg {
    left: -200%;
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--5-min-min.jpg") center center no-repeat;
    background-size: cover;
    background-position: 0px center, 0px center;
    transform: translate3d(0, 0, 0);
    will-change: transform;
  }
  .slide--5__darkbg:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(11, 15, 39, 0.83);
  }
  .slide--5__letter {
    background: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/537051/city--5-min-min.jpg") center center no-repeat;
    background-position: 0px center, 0px center;
    background-size: cover;
  }

  .nav {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    list-style-type: none;
    z-index: 10;
  }
  .nav__slide {
    position: relative;
    display: inline-block;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid #fff;
    margin-left: 10px;
    cursor: pointer;
  }
  @media screen and (max-width: 400px) {
    .nav__slide {
      width: 22px;
      height: 22px;
    }
  }
  .nav__slide:hover:after {
    transform: translate(-50%, -50%) scale(1, 1);
    opacity: 1;
  }
  .nav__slide:after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0, 0);
    width: 75%;
    height: 75%;
    border-radius: 50%;
    background-color: #fff;
    opacity: 0;
    transition: 300ms;
  }
  .nav__slide--1 {
    margin-left: 0;
  }

  .nav-active:after {
    transform: translate(-50%, -50%) scale(1, 1);
    opacity: 1;
  }

  .side-nav {
    position: absolute;
    width: 10%;
    height: 100%;
    top: 0;
    z-index: 20;
    cursor: pointer;
    opacity: 0;
    transition: 300ms;
  }
  .side-nav:hover {
    opacity: 0.1;
  }
  .side-nav--right {
    right: 0;
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, #eed7ff 100%);
  }
  .side-nav--left {
    left: 0;
    background-image: linear-gradient(to left, rgba(255, 255, 255, 0) 0%, #eed7ff 100%);
  }