View Transition digit

index.html

<div class="integer">
  1
  
</div>

script.js

let counter = 1;
let el = document.querySelector(".integer")
setInterval(()=>{
  counter = counter < 10 ? counter + 1 : 0;
  const transition = document.startViewTransition(() => {
    el.textContent = counter; 
  });
},1000);

style.css

@view-transition {
  navigation: auto;
}

@keyframes body-animation {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 0 100vh;
  }
}

html {
  min-block-size: 100%;
  display: grid;
  place-items: center;
  background-image: linear-gradient(hotpink, deeppink,hotpink);
  animation: body-animation 3s linear infinite ;
}

.integer {
  padding: 0.5em;
  min-width: 2ch;
  text-align: center;
  font-size: 25vmin;
  font-weight: bold;
  background-color: deeppink;
  color: white;
  border-radius: 0.3em;
  view-transition-name: number;
  border: 2px solid #fff3;
}

::view-transition-group(root) {
}

::view-transition-group(number) {
  animation-duration: 1s;
}

@keyframes blink {
  0% {
    clip-path: inset(0 0% 100% 0);
    filter: brightness(1.3);
    opacity: 1;
    rotate: x -90deg;
  }
  100% {
    clip-path: inset(0 0% 0 0);
    filter: brightness(1);
    opacity: 1;
  }
}

@keyframes whipe {
  0% {
    clip-path: inset(0 0% 0 0);
    filter: brightness(1);

  }
  100% {
    clip-path: inset(100% 0% 0 0);
    filter: brightness(0.9);
  }
}

@keyframes turn{
  0%{
      rotate: x -40deg
  }
  100%{
   rotate: x 0deg
  }
}
::view-transition-image-pair(number) {
  transform-style: preserve-3d;

}
::view-transition-new(number) {
  opacity: 1;
  animation-name: blink;
  z-index: 1;

}

::view-transition-old(number) {
  opacity: 1;
  clip-path: inset(0 50% 0 0);
  z-index: 2;
  animation-name: whipe;
  transform-origin: 50% 50%;

}

view-transition-digit.markdown

View Transition digit

A Pen by Michael Gehrmann on CodePen.

License.