Emoji Animation on Scroll Using CSS

Emoji Animation on Scroll Using CSS
Code Snippet:Scroll & Smile
Author: it-runner
Published: January 10, 2024
Last Updated: January 22, 2024
Downloads: 471
License: MIT
Edit Code online: View on CodePen
Read More

This CSS code snippet helps you to create an attractive emoji animation on the scroll event. It uses CSS and JavaScript to change the face’s emotions based on scrolling. The emoji’s eyes, smile, and other elements change their visibility and size as you scroll. It’s a fun visual effect for a webpage.

You can integrate this animation on your website to add a playful scrolling effect. It offers a quirky way to engage visitors and make your webpage more interactive.

How to Create Emoji Animation On Scroll Using CSS

1. First of all, copy the following HTML structure and paste it into your webpage’s HTML file. This structure includes elements like <h1>, <div> for the emoji face, and an anchor tag for the back-to-top link.

  <h1>Scroll & Smile!</h1>

  <div class="face">
    <div class="eye lefteye"></div>
    <div class="eye righteye"></div>
    <div class="eyewhite eyewhite-left"></div>
    <div class="eyewhite eyewhite-right"></div>
    <div class="smile"></div>
    <div class="bigsmile bigsmile-left"></div>
    <div class="bigsmile bigsmile-right"></div>
    <div class="smilecover"></div>
    <div class="nosmile"></div>
  </div>
  <a class="back-link" href="#top">back</a>

2. Now, include the following CSS code in your webpage’s CSS file or within <style> tags in the HTML file. It contains styles for the emoji elements, defining their appearance, positioning, and transitions. Customize the CSS rules in order to get the desired output.

@import url("https://fonts.googleapis.com/css2?family=Nanum+Pen+Script&display=swap");

* {
  scroll-behavior: smooth;
}

body{
  background: rgb(0, 0, 0);
  background: -webkit-linear-gradient(
    25deg,
    rgb(36, 140, 36),
    rgb(41, 43, 114)
  );
  background: linear-gradient(25deg, rgb(65, 118, 116), rgb(41, 43, 114)) !important;
  background-repeat: no-repeat;
  border: 0;
  font-family: "Nanum Pen Script", cursive;
  height: 600vh;
  margin: 0;
  max-width: 100vw;
}

h1 {
  color: rgb(47, 255, 0);
  font-size: 10vmin;
  font-weight: 400;
  letter-spacing: 0.6vmin;
  margin: 0;
  padding: 0;
  position: fixed;
  text-align: center;
  top: 9%;
  width: 100vw;
  z-index: 10;
}

.face {
  aspect-ratio: 1/1;
  background-color: rgb(255, 208, 19);
  border: 2.4vmin solid black;
  border-radius: 50%;
  left: 50%;
  position: fixed;
  top: 22%;
  transform: translate(-50%);
  width: 60vmin;
}

.eye {
  aspect-ratio: 1 / 1.2;
  background-color: black;
  border-radius: 50%;
  position: fixed;
  top: 24%;
  transition: background-color 2s;
  width: 10vmin;
  z-index: 10;
}

.lefteye {
  left: 18%;
}

.righteye {
  right: 18%;
}

.eyewhite {
  aspect-ratio: 1/1.2;
  background-color: rgb(255, 244, 200);
  border-radius: 50%;
  position: fixed;
  rotate: 10deg;
  top: 28%;
  width: 3.6vmin;
  z-index: 20;
}

.eyewhite-left {
  left: 21%;
  opacity: 0;
}

.eyewhite-right {
  opacity: 0;
  right: 25.6%;
}

.smile {
  aspect-ratio: 1/1;
  background-color: rgb(255, 208, 19);
  border-bottom: 2.4vmin solid black;
  border-bottom-left-radius: 50%;
  border-bottom-right-radius: 50%;
  border-top-left-radius: 50%;
  border-top-right-radius: 50%;
  left: 50%;
  opacity: 0;
  position: fixed;
  top: 45%;
  transform: translate(-50%, -50%);
  width: 40vmin;
  z-index: 5;
}

.bigsmile {
  background-color: rgb(46, 46, 46);
  border-radius: 50%;
  height: 0.4vmin;
  opacity: 0;
  position: fixed;
  top: 63%;
  transition: 0.5s;
  width: 4vmin;
  z-index: 30;
}

.bigsmile-left {
  left: 16.5%;
  rotate: -46deg;
}

.bigsmile-right {
  right: 16.5%;
  rotate: 46deg;
}

.smilecover {
  background-color: rgb(255, 208, 19);
  border-radius: 50%;
  height: 32vmin;
  left: 50%;
  position: fixed;
  top: 15%;
  transform: translate(-50%);
  width: 52.6vmin;
  z-index: 7;
}

.nosmile {
  background-color: rgb(0, 0, 0);
  border-radius: 30%;
  height: 2vmin;
  left: 50%;
  position: fixed;
  rotate: -7deg;
  top: 76.5%;
  transform: translate(-20%);
  transition: 0.4s;
  width: 8vmin;
}

.back-link {
  background-color: transparent;
  bottom: 2vh;
  color: rgb(255, 85, 23);
  cursor: unset;
  display: inline-block;
  font-family: "Nanum Pen Script", cursive;
  font-size: clamp(26px, 5vw, 36px);
  right: -200vw;
  letter-spacing: 2px;
  margin: 0;
  max-width: 80vw;
  opacity: 0;
  padding: 0;
  position: fixed;
  text-decoration: none;
  transition: 1s;
}

3. Finally, insert the following JavaScript code into your webpage’s JavaScript file or within <script> tags at the end of the HTML file, just before the closing </body> tag. It enables the emoji animation based on scrolling.

window.addEventListener("load", () => {
  const SMILE = document.querySelector(".smile");
  const EYEWHITE = document.querySelectorAll(".eyewhite");
  const BIGSMILE = document.querySelectorAll(".bigsmile");
  const NOSMILE = document.querySelector(".nosmile");
  const BACK_LINK = document.querySelector(".back-link");

  const scrollAndSmile = () => {
    currentScroll =
      window.scrollY /
      (document.documentElement.offsetHeight - window.innerHeight);
    SMILE.style.opacity = currentScroll;

    EYEWHITE.forEach((eye) => {
      eye.style.opacity = currentScroll;
    });

    if (currentScroll > 0.01) {
      NOSMILE.style.opacity = "0";
      NOSMILE.style.width = "0";
    } else {
      NOSMILE.style.opacity = "1";
      NOSMILE.style.width = "8vmin";
    }

    BIGSMILE.forEach((e) => {
      if (currentScroll < 0.97) {
        e.style.opacity = "0";
        e.style.width = "0";
      } else {
        e.style.opacity = "1";
        e.style.width = "4vmin";
      }
    });

    if (currentScroll > 0.1) {
      BACK_LINK.style.opacity = 1;
      BACK_LINK.style.cursor = "pointer";
      BACK_LINK.style.right = "15%";
    } else {
      BACK_LINK.style.opacity = 0;
      BACK_LINK.style.cursor = "unset";
      BACK_LINK.style.right = "-200vw";
    }
  };

  window.addEventListener("scroll", scrollAndSmile);
});

That’s all! hopefully, you have successfully created an emoji animation on the scroll event using HTML, CSS, and JavaScript. If you have any questions or suggestions, feel free to comment below.

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

About CodeHim

Free Web Design Code & Scripts - CodeHim is one of the BEST developer websites that provide web designers and developers with a simple way to preview and download a variety of free code & scripts. All codes published on CodeHim are open source, distributed under OSD-compliant license which grants all the rights to use, study, change and share the software in modified and unmodified form. Before publishing, we test and review each code snippet to avoid errors, but we cannot warrant the full correctness of all content. All trademarks, trade names, logos, and icons are the property of their respective owners... find out more...