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HTML

              
                <figure class="logo logo--top js-trigger">
  <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/logo.svg">
</figure>

<a href="https://codepen.io/ReGGae/full/QZxdVX/" target="_blank" class="resize">
  <div class="resize__inner">
    <figure class="logo logo--resize">
      <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/logo.svg">
    </figure>
    <p>Please view in <span>full page</span> mode</p>
  </div>
</a>

<a href="https://twitter.com/Jesper_Landberg?lang=en" target="_blank" class="hi">
  Hi
</a>

<a href="https://dribbble.com/shots/5321013-Habital-Showcase-Alternative" target="_blank" rel="nofollow" class="menu-btn js-menu-btn">
  <div class="menu-btn__circles">
    <span class="menu-btn__circle menu-btn__circle--top js-menu-btn__circle--top"></span>
    <span class="menu-btn__circle menu-btn__circle--bottom js-menu-btn__circle--bottom"></span>
  </div>
  <div class="menu-btn__text">See shot</div>
</a>

<div class="scroll" data-scroll>
  
  <nav class="filter">
    <ul class="filter__list">
      <li class="filter__item">
        <a href="#" class="filter__link is-active js-trigger">
          <div class="filter__link-mask" area-hidden><span>Interiors</span></div>
          Interiors
        </a>   
      </li>
      <li class="filter__item">
        <a href="#" class="filter__link js-trigger">
          <div class="filter__link-mask" area-hidden><span>Residential</span></div>
          Residential
        </a>   
      </li>
      <li class="filter__item">
        <a href="#" class="filter__link js-trigger">
          <div class="filter__link-mask" area-hidden><span>Commercial</span></div>
          Commercial
        </a>   
      </li>
       <li class="filter__item">
        <a href="#" class="filter__link js-trigger">
          <div class="filter__link-mask" area-hidden><span>Installation</span></div>
          Installation
         </a>   
      </li>
    </ul>
  </nav>
  
  <div class="scroll-content" data-scroll-content>
    
    <article class="slide slide--1 js-slide">
      <div class="slide__inner">
        <div class="slide__img js-transition-img">
          <figure class="js-transition-img__inner">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/project-one.png" draggable="false">
          </figure>
        </div>
      </div>
    </article>
    
    <article class="slide slide--2 js-slide">
      <div class="slide__inner">
        <div class="slide__img js-transition-img">
          <figure class="js-transition-img__inner">
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/project-two.png" draggable="false">
          </figure>
        </div>
      </div>
    </article>
    
    <article class="slide slide--3 js-slide">
      <div class="slide__inner">
        <div class="slide__img">
          <figure>
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/project-three.png" draggable="false">
          </figure>
        </div>
      </div>
    </article>

    <article class="slide slide--1 js-slide">
      <div class="slide__inner">
        <div class="slide__img">
          <figure>
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/project-one.png" draggable="false">
          </figure>
        </div>
      </div>
    </article>
    
    <article class="slide slide--2 js-slide">
      <div class="slide__inner">
        <div class="slide__img">
          <figure>
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/project-two.png" draggable="false">
          </figure>
        </div>
      </div>
    </article>
    
    <article class="slide slide--3 js-slide">
      <div class="slide__inner">
        <div class="slide__img">
          <figure>
            <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/project-three.png" draggable="false">
          </figure>
        </div>
      </div>
    </article>
    
  </div>  
  
  <div class="scroll-content scroll-content--last" data-scroll-content>
    
    <article class="slide slide--1 js-slide">
      <div class="slide__inner">
        <div class="slide__sub-title"><span>Project</span></div>
        <h1 class="slide__title"><div class="js-transition-title">Oak Refuge</div></h1>
        <div class="slide__img slide__img--proxy"></div>
        <div class="slide__project">Corpus Studio</div>
      </div>
    </article>
    
    <article class="slide slide--2 js-slide">
      <div class="slide__inner">
        <div class="slide__sub-title"><span>Project</span></div>
        <h1 class="slide__title"><div class="js-transition-title">Teton Residence</div></h1>
        <div class="slide__img slide__img--proxy"></div>
        <div class="slide__project">Ro Rocket Design</div>
      </div>
    </article>
    
    <article class="slide slide--3 js-slide">
      <div class="slide__inner">
        <div class="slide__sub-title"><span>Project</span></div>
        <h1 class="slide__title">Oak Refuge</h1>
        <div class="slide__img slide__img--proxy"></div>
        <div class="slide__project">Corpus Studio</div>
      </div>
    </article>

    <article class="slide slide--1 js-slide">
      <div class="slide__inner">
        <div class="slide__sub-title"><span>Project</span></div>
        <h1 class="slide__title">Teton Residence</h1>
        <div class="slide__img slide__img--proxy"></div>
        <div class="slide__project">Ro Rocket Design</div>
      </div>
    </article>
    
    <article class="slide slide--2 js-slide">
      <div class="slide__inner">
        <div class="slide__sub-title"><span>Project</span></div>
        <h1 class="slide__title">Oak Refuge</h1>
        <div class="slide__img slide__img--proxy"></div>
        <div class="slide__project">Corpus Studio</div>
      </div>
    </article>
    
    <article class="slide slide--3 js-slide">
      <div class="slide__inner">
        <div class="slide__sub-title"><span>Project</span></div>
        <h1 class="slide__title">Teton Residence</h1>
        <div class="slide__img slide__img--proxy"></div>
        <div class="slide__project">Ro Rocket Design</div>
      </div>
    </article>
    
  </div>
  
  <div class="scrollbar" data-scrollbar>
    <div class="scrollbar__handle js-scrollbar__handle"></div>
  </div>
  
</div>

<div class="mask js-mask">
  <div class="mask__slice js-mask__slice"></div>
  <div class="mask__slice js-mask__slice"></div>
  <div class="mask__slice js-mask__slice"></div>
  <div class="mask__inner">
    <figure class="logo logo--mask">
      <img class="js-logo" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/logo.svg">
    </figure>
    <div class="mask-line js-mask-line">
      <div class="mask-line__inner js-mask-line"></div>
    </div>
  </div>
</div>
              
            
!

CSS

              
                @font-face {
    font-family: 'font';
    src: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/OakesGrotesk-Semi-Bold.woff.woff2') format('woff2');
    src: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/https://s3-us-west-2.amazonaws.com/s.cdpn.io/58281/OakesGrotesk-Semi-Bold.woff.woff2') format('woff');
    font-weight: normal;
    font-style: normal;
}

html, body{
  height: 100%;
  font-family: 'helvetica neue';
}

body{
  height: 100%;
  overflow-y: scroll;
  padding: 0;
  margin: 0;
  background-color: #111;
  user-select: none;
}

h1, h2{
  font-weight: normal;
}

* {
  box-sizing: border-box;
}

figure{
  padding: 0;
  margin: 0;
}

.scroll{
  cursor: grab;
}

.scroll-content{
  display: flex;
  white-space: nowrap;
  position: relative;
  height: 100vh;
  
  &--last{
    position: absolute;
    top: 0;
    left: 0;
  }
}

.hi{
  position: fixed;
  bottom: 2vw;
  left: 2vw;
  color: #fff;
  font-size: 1vw;
  z-index: 999;
  text-decoration: none;
}

.logo{
  position: relative;
  
  &--top{
    position: fixed;
    top: 2vw;
    left: 2vw;
    z-index: 10;
    
    img{
      height: 1vw;
      width: auto;
    }
  }
  
  &--resize{
    margin-bottom: 1rem;
    
    img{
      width: 10rem;
      margin: 0 auto;
    }
  }
  
  &--mask{
    overflow: hidden;
    margin-bottom: 2rem;
    
    img{
      width: 15rem;
      height: auto;
      margin: 0 auto;
      visibility: hidden;
      opacity: 0;
    }
  }
}

.menu-btn{
  position: fixed;
  top: 2vw;
  right: 2vw;
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 999;
  
  &__circles{
    position: relative;
    height: 0.45vw;
    width: 0.45vw;
    margin-right: 0.75vw;
  }
  
  &__circle{
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    border-radius: 50%;
    
    &--top{
      visiblity: hidden;
      opacity: 0;
    }
  }
  
  &__text{
    color: #fff;
    font-size: 1vw;
  }
}

.filter{
  position: absolute;
  top: 7.5%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  
  &__list{
    display: flex;
  }
  
  &__item{
    display: block;
  }
  
  &__link{
    position: relative;
    display: block;
    color: rgba(#fff, 0.5);
    text-decoration: none;
    padding: 0 1.5vw;
    font-size: 1.15vw;
    overflow: hidden;
    
    &-mask{
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      overflow: hidden;
      background-color: #111;
      transform: translate3d(-100%, 0, 0);
      transition: transform .75s ease;
      z-index: 2;
      
      span{
        display: block;
        padding: 0 1.5vw;
        font-size: 1.15vw;
        transform: translate3d(100%, 0, 0);
        transition: transform .75s ease;
        color: #fff;
        
        .filter__link:hover &,
        .filter__link.is-active & {
          transform: translate3d(0, 0, 0);
        }
      }
      
      .filter__link:hover &,
      .filter__link.is-active & {
        transform: translate3d(0, 0, 0);
      }
    }
  }
}

.slide{
  display: flex;
  width: 50vw;
  height: 100%;
  padding: 20vh 0;
  
  &--1{
    align-items: flex-start;
  }
  
  &--2{
    align-items: flex-end;
  }
  
  &--3{
    align-items: center;
  }
  
  
  &:last-child{
    width: 65vw;
    padding-right: 15vw;
  }
  
  &__inner{
    position: relative;
    padding-left: 15vw;
    width: 100%;
  }
  
  &__sub-title{
    position: absolute;
    top: 15%;
    left: 5vw;
    color: rgba(#fff, 0.5);
    font-size: 1vw;
  }
  
  &__title{
    position: absolute;
    top: 7.5%;
    left: 7.5vw;
    color: #fff;
    font-size: 4vw;
    z-index: 2;
    overflow: hidden;
  }
  
  &__project{
    color: #fff;
    position: absolute;
    top: 100%;
    right: 5%;
    font-size: 1.15vw;
    padding-top: 1.5vw;
  }
  
  &__img{
    position: relative;
    overflow: hidden;
    padding-top: 65%;
    width: 100%;
    
    figure{
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      
      img{
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
        object-fit: cover;
      }
    }
  }
}

img{
  display: block;
  width: 100%;
  height: auto;
}

.scrollbar{
  position: absolute;
  bottom: 7.5%;
  left: 20%;
  right: 20%;
  height: 1px;
  background-color: rgba(#fff, 0.25);
  
  &__handle{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: scaleX(0);
    transform-origin: left;
    background-color: #fff;
  }
}

.mask{
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  
  &__slice{
    flex: 1;
    background-color: #000;
  }
  
  &__inner{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
  }
  
  &-line{
    position: relative;
    transform-origin: left;
    width: 20rem;
    height: 2px;
    overflow: hidden;
    background-color: rgba(#fff, 0.25);
    visibility: hidden;
    opacity: 0;
    
    &__inner{
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: #fff;
      transform-origin: left;
    }
  }
}

.resize{
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  z-index: 9999;
  
  &__inner{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    color: #fff;
    text-align: center;
    text-decoration: none;
  }
  
  span{
    color: rgba(#fff, 0.5);
  }
  
  @media (max-width: 800px) {
    display: block;
  }
  
  @media (max-height: 600px) {
    display: block;
  }
}
              
            
!

JS

              
                const math = {
	lerp: (a, b, n) => {
		return (1 - n) * a + n * b
	},
	norm: (value, min, max) => {
	  	return (value - min) / (max - min)
	}
}

const config = {
  height: window.innerHeight,
  width: window.innerWidth
}

class Smooth {
  constructor() {
    this.bindAll()
    
    this.el = document.querySelector('[data-scroll]')
    this.content = [...document.querySelectorAll('[data-scroll-content]')]
    
    this.dom = {
      el: this.el,
      content: this.content,
      elems: [[...this.content[0].querySelectorAll('.js-slide')], [...this.content[1].querySelectorAll('.js-slide')]],
      handle: this.el.querySelector('.js-scrollbar__handle')
    }
    
    this.data = {
      total: this.dom.elems[0].length - 1,
      current: 0,
      last: {
        one: 0,
        two: 0
      },
      on: 0,
      off: 0
    }

    this.bounds = {
      elem: 0,
      content: 0,
      width: 0,
      max: 0,
      min: 0
    }
    
    this.state = {
      dragging: false
    }

    this.rAF = null
    this.parallax = null

    this.init()
  }

  bindAll() {
    ['scroll', 'run', 'resize']
    .forEach((fn) => this[fn] = this[fn].bind(this))
  }

  setStyles() {
    this.dom.el.style.position = 'fixed';
    this.dom.el.style.top = 0;
    this.dom.el.style.left = 0;
    this.dom.el.style.height = '100%'
    this.dom.el.style.width = '100%'
    this.dom.el.style.overflow = 'hidden'   
  }

  setBounds(elems) {
    let w = 0
    
    elems.forEach((el, index) => {
      const bounds = el.getBoundingClientRect()

      el.style.position = 'absolute'
      el.style.top = 0
      el.style.left = `${w}px`
     
      w = w + bounds.width
      
      this.bounds.width = w
      this.bounds.max = this.bounds.width - config.width
      
      if ((this.data.total) === index && elems === this.dom.elems[0]) {
        this.dom.content[0].style.width = `${w}px`
        this.dom.content[1].style.width = `${w}px`
        document.body.style.height = `${w}px`
      }
    })
  }

  resize() {
    this.setBounds(this.dom.elems[0])
    this.setBounds(this.dom.elems[1])
    this.scroll()
  }

  preload() {
    imagesLoaded(this.dom.content, (instance) => {
      this.setBounds(this.dom.elems[0])
      this.setBounds(this.dom.elems[1])
    })
  }

  scroll() {
    if (this.state.dragging) return
    
    this.data.current = window.scrollY
    this.clamp()
  }
  
  drag(e) {
    this.data.current = window.scrollY - (e.clientX - this.data.on)
    this.clamp()
  }
  
  clamp() {
    this.data.current = Math.min(Math.max(this.data.current, 0), this.bounds.max)
  }

  run() {
    this.data.last.one = math.lerp(this.data.last.one, this.data.current, 0.085)
    this.data.last.one = Math.floor(this.data.last.one * 100) / 100
    
    this.data.last.two = math.lerp(this.data.last.two, this.data.current, 0.08)
    this.data.last.two = Math.floor(this.data.last.two * 100) / 100
    
    const diff = this.data.current - this.data.last.one
    const acc = diff / config.width
    const velo =+ acc
    const bounce = 1 - Math.abs(velo * 0.25)
    const skew = velo * 7.5
    
    this.dom.content[0].style.transform = `translate3d(-${this.data.last.one.toFixed(2)}px, 0, 0) scaleY(${bounce}) skewX(${skew}deg)`
    this.dom.content[1].style.transform = `translate3d(-${this.data.last.two.toFixed(2)}px, 0, 0) scaleY(${bounce})`
    
    const scale = math.norm(this.data.last.two, 0, this.bounds.max)
    
    this.dom.handle.style.transform = `scaleX(${scale})`

    this.requestAnimationFrame()
  }

  on() { 
    this.setStyles()
    this.setBounds(this.dom.elems[0])
    this.setBounds(this.dom.elems[1])
    this.addEvents()

    this.requestAnimationFrame()
  }

  requestAnimationFrame() {
    this.rAF = requestAnimationFrame(this.run)
  }

  resize() {
    this.setBounds()
  }

  addEvents() {
    window.addEventListener('scroll', this.scroll, { passive: true })
    
    this.dom.el.addEventListener('mousemove', (e) => {
       if (!this.state.dragging) return
       
       this.drag(e)
    }, { passive: true })
    
    this.dom.el.addEventListener('mousedown', (e) => {
      this.state.dragging = true
      this.data.on = e.clientX
    })
    
    window.addEventListener('mouseup', () => {
      this.state.dragging = false
      window.scrollTo(0, this.data.current)
    })
  }

  init() {
    this.preload()
    this.on()
  }
}


class Transition {
  constructor() {
    this.dom = {
      mask: document.querySelector('.js-mask'),
      slices: [...document.querySelectorAll('.js-mask__slice')],
      triggers: [...document.querySelectorAll('.js-trigger')],
      lines: [...document.querySelectorAll('.js-mask-line')],
      logo: document.querySelector('.js-logo'),
      images: [...document.querySelectorAll('.js-transition-img')],
      imagesInner: [...document.querySelectorAll('.js-transition-img__inner')],
      titles: [...document.querySelectorAll('.js-transition-title')]
    }
    
    this.tl = null
    
    this.state = false
    
    this.init()
  }
  
  resetScroll() {
    window.scrollTo(0, 0)
  }
  
  createTimeline() {
    this.tl = new TimelineMax({ 
      paused: true,
      onComplete: () => {
        this.state = false
      }
    })
    
    this.tl
    .set([this.dom.images, this.dom.imagesInner], {
      xPercent: 0,
      scale: 1
    })
    .set(this.dom.titles, {
      yPercent: 0
    })
    .set(this.dom.mask, {
      autoAlpha: 1
    })
    .staggerFromTo(this.dom.slices, 1.5, {
      xPercent: 100
    }, {
      xPercent: 0,
      ease: Expo.easeInOut
    }, -0.075)
    
    .addCallback(this.resetScroll.bind(this))
    .addLabel('loaderStart')
    
    .set(this.dom.images, {
      xPercent: -100
    })
    .set(this.dom.imagesInner, {
      xPercent: 100
    })
    .set(this.dom.titles, {
      yPercent: -100
    })
    .set([this.dom.lines[0], this.dom.logo], {
      autoAlpha: 1
    })
    .fromTo(this.dom.logo, 1, {
      yPercent: -100,
      rotation: 10
    }, {
      yPercent: 0,
      rotation: 0,
      ease: Expo.easeOut
    })
    .staggerFromTo(this.dom.lines, 1, {
      scaleX: 0
    }, {
      scaleX: 1,
      ease: Expo.easeInOut
    }, 0.75, "-=1")
    .set(this.dom.lines, {
      transformOrigin: 'right'
    })
    .fromTo(this.dom.lines[0], 1, {
      scaleX: 1
    }, {
      scaleX: 0,
      ease: Expo.easeInOut
    })
    .fromTo(this.dom.logo, 1, {
      yPercent: 0
    }, {
      yPercent: 105,
      ease: Expo.easeOut
    }, "-=1")
    .staggerFromTo(this.dom.slices, 1.5, {
      xPercent: 0
    }, {
      xPercent: 100,
      ease: Expo.easeInOut
    }, 0.075)
    .set(this.dom.mask, {
      autoAlpha: 0
    })
    
    .addLabel('imagesStart', "-=0.85")
    
    .staggerFromTo(this.dom.titles, 1.5, {
      yPercent: 100
    }, {
      yPercent: 0,
      ease: Expo.easeInOut
    }, 0.05, 'imagesStart')
    .staggerFromTo(this.dom.images, 1.25, {
      xPercent: -100
    }, {
      xPercent: 0,
      ease: Expo.easeInOut
    }, 0.05, 'imagesStart')
    .staggerFromTo(this.dom.imagesInner, 1.25, {
      xPercent: 100
    }, {
      xPercent: 0,
      ease: Expo.easeInOut
    }, 0.05, 'imagesStart')
    
    .addLabel('loaderEnd')
  }
  
  addEvents() {
    this.dom.triggers.forEach(trigger => {
      trigger.addEventListener('click', (e) => {
        e.preventDefault()
        
        if (this.state) return
        
        this.dom.triggers.forEach(el => { el.classList.remove('is-active') })
        trigger.classList.add('is-active')

        this.state = true
        this.tl.restart()
      })     
    })
  }
  
  loader() {
    this.resetScroll()
    this.tl.tweenFromTo('loaderStart', 'loaderEnd')
  }
  
  init() {
    this.createTimeline()
    this.addEvents()
    this.loader()
  }
}

// Init classes
const smooth = new Smooth()
const transition = new Transition()

// See shot - hover
const btn = document.querySelector('.js-menu-btn')

btn.addEventListener('mouseenter', () => {
  TweenMax.to('.js-menu-btn__circle--bottom', 0.5, {
    y: 15,
    alpha: 0,
    ease: Expo.easeOut
  })
  
  TweenMax.set('.js-menu-btn__circle--top', {
    autoAlpha: 1
  })
  TweenMax.fromTo('.js-menu-btn__circle--top', 0.75, {
    y: -60
  }, {
    y: 0,
    ease: Bounce.easeOut
  })
})

btn.addEventListener('mouseleave', () => {
  TweenMax.to('.js-menu-btn__circle--top', 0.5, {
    y: 15,
    alpha: 0,
    ease: Expo.easeOut
  })
  
  TweenMax.set('.js-menu-btn__circle--bottom', {
    autoAlpha: 1
  })
  TweenMax.fromTo('.js-menu-btn__circle--bottom', 0.75, {
    y: -60
  }, {
    y: 0,
    ease: Bounce.easeOut
  })
})
              
            
!
999px

Console