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HTML

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CSS

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CSS Base

About CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="container">
  <div class="box">
    <div class="number1 is-active">1</div>
    <div class="number2">2</div>
    <div class="number3">3</div>
  </div>
  <div class="cards">
    <div class="card1 is-active">①</div>
    <div class="card2">②</div>
    <div class="card3">③</div>
  </div>
  
</div>
!

CSS 

              
                .container {
  padding-top: 20px;
 width: 300px;
}

.box {
 display: flex;
 justify-content: center;
}

.number1,
.number2,
.number3{
 width: 50px;
 height: 50px;
 background-color: white;
  border-radius: 50%;
  border: 1px solid black;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.number2,
.number3{
  margin-left: 20px;
}


.number1.is-active,
.number2.is-active,
.number3.is-active {
  background-color: orange;
}


.cards {
  padding: 20px;
  text-align: center;
}

.card1,
.card2,
.card3 {
  font-size: 100px;
  opacity: 0;
  visibility: hidden;
  display: none;
}

.card1.is-active,
.card2.is-active,
.card3.is-active {
  display: block;
}
!

JS 

              
                let card1 = document.querySelector('.card1');
let card2 = document.querySelector('.card2');
let card3 = document.querySelector('.card3');
let num1 = document.querySelector('.number1');
let num2 = document.querySelector('.number2');
let num3 = document.querySelector('.number3');

let tl1 = gsap.timeline();
let tl2 = gsap.timeline();
let tl3 = gsap.timeline();
let tl = gsap.timeline({
  repeat: -1
});

tl
.to(card1,{className:'card1 is-active'})
.to(card2,{className:'card2'},'<')
.to(card3,{className: 'card3'},'<')
.to(num1,{className: 'number1 is-active'},'<')
.to(num2,{className: 'number2'},'<')
.to(num3,{className: 'number3'},'<')
.to(card1,{autoAlpha:1})
.to(card1,{autoAlpha:0}, '+=3')

.to(card1,{className:'card1'})
.to(card2,{className:'card2 is-active'},'<')
.to(card3,{className: 'card3'},'<')
.to(num1,{className: 'number1'},'<')
.to(num2,{className: 'number2 is-active'},'<')
.to(num3,{className: 'number3'},'<')
.to(card2,{autoAlpha:1})
.to(card2,{autoAlpha:0}, '+=3')

 .to(card1,{className:'card1'})
.to(card2,{className:'card2'},'<')
.to(card3,{className: 'card3 is-active'},'<')
.to(num1,{className: 'number1'},'<')
.to(num2,{className: 'number2'},'<')
.to(num3,{className: 'number3 is-active'},'<')
.to(card3,{autoAlpha:1})
.to(card3,{autoAlpha:0}, '+=3')

num1.addEventListener('mouseover',function(){
  if(tl1.isActive()){
    return;
  }else{
    tl.pause();
    tl1
    .to(card1,{className:'card1 is-active'})
    .to(card2,{className:'card2'},'<')
    .to(card3,{className: 'card3'},'<')
    .to(num1,{className: 'number1 is-active'},'<')
    .to(num2,{className: 'number2'},'<')
    .to(num3,{className: 'number3'},'<')
    .fromTo(card1,{autoAlpha:0},{autoAlpha:1})
  }
})

num2.addEventListener('mouseover',function(){
  if(tl2.isActive()){
    return;
  }else{
    tl.pause();
    tl2
    .to(card1,{className:'card1'})
    .to(card2,{className:'card2 is-active'},'<')
    .to(card3,{className: 'card3'},'<')
    .to(num1,{className: 'number1'},'<')
    .to(num2,{className: 'number2 is-active'},'<')
    .to(num3,{className: 'number3'},'<')
    .fromTo(card2,{autoAlpha:0},{autoAlpha:1})
  }
})

num3.addEventListener('mouseover',function(){
  if(tl3.isActive()){
    return;
  }else{
    tl.pause();
    tl3
    .to(card1,{className:'card1'})
    .to(card2,{className:'card2'},'<')
    .to(card3,{className: 'card3 is-active'},'<')
    .to(num1,{className: 'number1'},'<')
    .to(num2,{className: 'number2'},'<')
    .to(num3,{className: 'number3 is-active'},'<')
    .fromTo(card3,{autoAlpha:0},{autoAlpha:1})
  }
})

num1.addEventListener('mouseleave',function(){
  tl.restart();
});

num2.addEventListener('mouseleave',function(){
  tl.restart();
});

num3.addEventListener('mouseleave',function(){
  tl.restart();
});
!
999px

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