Learn with us how to create an animated rating in CSS and Javascript!
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Happy coding! 😻
@creative.tim Add this animated rating in JS to your website 🤩 check the link in bio for full code #coding #techtok #programmingexercises #javascriptprogramming ♬ original sound - Creative Tim
Contents:
1. HTML Code
2. CSS Code
3. Javascript Code
Get your code ⬇️
1. HTML Code
<form class="fr" action="">
<label class="fr__label" for="face-rating">Rate your experience with us</label>
<div class="fr__face" role="img" aria-label="Straight face">
<div class="fr__face-right-eye" data-right></div>
<div class="fr__face-left-eye" data-left></div>
<div class="fr__face-mouth-lower" data-mouth-lower></div>
<div class="fr__face-mouth-upper" data-mouth-upper></div>
</div>
<input class="fr__input" id="face-rating" type="range" value="2.5" min="0" max="5" step="0.1">
</form>
2. CSS Code
* {
border: 0;
box-sizing: border-box;
margin: 0;
padding: 0;
}
:root {
--hue: 223;
--white: hsl(var(--hue),10%,100%);
--lt-gray: hsl(var(--hue),10%,95%);
--gray1: hsl(var(--hue),10%,90%);
--gray2: hsl(var(--hue),10%,80%);
--gray7: hsl(var(--hue),10%,30%);
--gray9: hsl(var(--hue),10%,10%);
--primary: hsl(var(--hue),90%,55%);
--trans-dur: 0.3s;
font-size: calc(16px + (24 - 16) * (100vw - 320px) / (1280 - 320));
}
body,
input {
font: 1em/1.5 "DM Sans", sans-serif;
}
body {
background-color: var(--white);
color: var(--gray9);
height: 100vh;
display: grid;
place-items: center;
transition:
background-color var(--trans-dur),
color var(--trans-dur);
}
/* Main styles */
.fr {
animation: fade-slide-in 0.6s ease-out;
padding: 0 1.5em;
max-width: 20em;
}
.fr__face {
--face-hue1: 60;
--face-hue2: 30;
background-image:
linear-gradient(
135deg,
hsl(var(--face-hue1),90%,55%),
hsl(var(--face-hue2),90%,45%)
);
border-radius: 50%;
box-shadow: 0 0.5em 0.75em hsla(var(--face-hue2),90%,55%,0.3);
margin: 0 auto 2em;
position: relative;
width: 3em;
height: 3em;
}
.fr__face-right-eye,
.fr__face-left-eye,
.fr__face-mouth-lower,
.fr__face-mouth-upper {
position: absolute;
transition:
background-color var(--trans-dur),
box-shadow var(--trans-dur),
color var(--trans-dur);
}
.fr__face-right-eye,
.fr__face-left-eye {
background-color: var(--white);
border-radius: 50%;
top: 0.75em;
width: 0.6em;
height: 0.6em;
}
.fr__face-right-eye {
--delay-right: 0s;
animation: right-eye 1s var(--delay-right) linear paused;
clip-path: polygon(0 75%,100% 0,100% 100%,0 100%);
left: 0.6em;
}
.fr__face-left-eye {
--delay-left: 0s;
animation: left-eye 1s var(--delay-left) linear paused;
clip-path: polygon(0 0,100% 75%,100% 100%,0 100%);
right: 0.6em;
}
.fr__face-mouth-lower,
.fr__face-mouth-upper {
color: var(--white);
top: 1.75em;
left: 0.75em;
width: 1.5em;
height: 0.75em;
}
.fr__face-mouth-lower {
--delay-mouth-lower: 0s;
animation: mouth-lower 1s var(--delay-mouth-lower) linear paused;
border-radius: 50% 50% 0 0 / 100% 100% 0 0;
box-shadow: 0 0.125em 0 inset;
}
.fr__face-mouth-upper {
--delay-mouth-upper: 0s;
animation: mouth-upper 1s var(--delay-mouth-upper) linear paused;
border-radius: 0 0 50% 50% / 0 0 100% 100%;
box-shadow: 0 -0.125em 0 inset;
}
.fr__label {
display: block;
margin-bottom: 1.5em;
text-align: center;
}
.fr__input {
--input-hue: 60;
--percent: 50%;
background-color: var(--gray1);
background-image: linear-gradient(hsl(var(--input-hue),90%,45%),hsl(var(--input-hue),90%,45%));
background-size: var(--percent) 100%;
background-repeat: no-repeat;
border-radius: 0.25em;
display: block;
margin: 0.5em auto;
width: 100%;
max-width: 10em;
height: 0.5em;
transition: background-color var(--trans-dur);
-webkit-appearance: none;
appearance: none;
-webkit-tap-highlight-color: transparent;
}
.fr__input:focus {
outline: transparent;
}
/* WebKit */
.fr__input::-webkit-slider-thumb {
background-color: var(--white);
border: 0;
border-radius: 50%;
box-shadow: 0 0.125em 0.5em hsl(0,0%,0%,0.3);
width: 1.5em;
height: 1.5em;
transition: background-color 0.15s linear;
-webkit-appearance: none;
appearance: none;
}
.fr__input:focus::-webkit-slider-thumb,
.fr__input::-webkit-slider-thumb:hover {
background-color: var(--lt-gray);
}
/* Firefox */
.fr__input::-moz-range-thumb {
background-color: var(--white);
border: 0;
border-radius: 50%;
box-shadow: 0 0.125em 0.5em hsl(0,0%,0%,0.3);
width: 1.5em;
height: 1.5em;
transition: background-color 0.15s linear;
}
.fr__input:focus::-moz-range-thumb,
.fr__input::-moz-range-thumb:hover {
background-color: var(--lt-gray);
}
/* `:focus-visible` support */
@supports selector(:focus-visible) {
.fr__input:focus::-webkit-slider-thumb {
background-color: var(--white);
}
.fr__input:focus-visible::-webkit-slider-thumb,
.fr__input::-webkit-slider-thumb:hover {
background-color: var(--lt-gray);
}
.fr__input:focus::-moz-range-thumb {
background-color: var(--white);
}
.fr__input:focus-visible::-moz-range-thumb,
.fr__input::-moz-range-thumb:hover {
background-color: var(--lt-gray);
}
}
/* Dark theme */
@media (prefers-color-scheme: dark) {
body {
background-color: var(--gray9);
color: var(--gray1);
}
.fr__face-right-eye,
.fr__face-left-eye {
background-color: var(--gray9);
}
.fr__face-mouth-lower,
.fr__face-mouth-upper {
color: var(--gray9);
}
.fr__input {
background-color: var(--gray7);
}
}
/* Animations */
@keyframes fade-slide-in {
from,
16.67% {
opacity: 0;
transform: translateY(25%);
}
to {
opacity: 1;
transform: translateY(0);
}
}
@keyframes right-eye {
from { clip-path: polygon(0 75%,100% 0,100% 100%,0 100%); }
50%, to { clip-path: polygon(0 0,100% 0,100% 100%,0 100%); }
}
@keyframes left-eye {
from { clip-path: polygon(0 0,100% 75%,100% 100%,0 100%); }
50%, to { clip-path: polygon(0 0,100% 0,100% 100%,0 100%); }
}
@keyframes mouth-lower {
from {
border-radius: 50% 50% 0 0 / 100% 100% 0 0;
top: 1.75em;
height: 0.75em;
visibility: visible;
}
40% {
border-radius: 50% 50% 0 0 / 100% 100% 0 0;
top: 1.95em;
height: 0.25em;
visibility: visible;
}
50%,
to {
border-radius: 0;
top: 2em;
height: 0.125em;
visibility: hidden;
}
}
@keyframes mouth-upper {
from,
50% {
border-radius: 0;
box-shadow: 0 -0.125em 0 inset;
top: 2em;
height: 0.125em;
visibility: hidden;
}
62.5% {
border-radius: 0 0 50% 50% / 0 0 100% 100%;
box-shadow: 0 -0.125em 0 inset;
top: 1.95em;
height: 0.25em;
visibility: visible;
}
75% {
border-radius: 0 0 50% 50% / 0 0 100% 100%;
box-shadow: 0 -0.125em 0 inset;
top: 1.825em;
height: 0.5em;
visibility: visible;
}
to {
border-radius: 0 0 50% 50% / 0 0 100% 100%;
box-shadow: 0 -0.8em 0 inset;
top: 1.75em;
height: 0.75em;
visibility: visible;
}
}
3. Javascript Code
window.addEventListener("DOMContentLoaded",() => {
const fr = new FaceRating("#face-rating");
});
class FaceRating {
constructor(qs) {
this.input = document.querySelector(qs);
this.input?.addEventListener("input",this.update.bind(this));
this.face = this.input?.previousElementSibling;
this.update();
}
update(e) {
let value = this.input.defaultValue;
// when manually set
if (e) value = e.target?.value;
// when initiated
else this.input.value = value;
const min = this.input.min || 0;
const max = this.input.max || 100;
const percentRaw = (value - min) / (max - min) * 100;
const percent = +percentRaw.toFixed(2);
this.input?.style.setProperty("--percent",`${percent}%`);
// face and range fill colors
const maxHue = 120;
const hueExtend = 30;
const hue = Math.round(maxHue * percent / 100);
let hue2 = hue - hueExtend;
if (hue2 < 0) hue2 += 360;
const hues = [hue,hue2];
hues.forEach((h,i) => {
this.face?.style.setProperty(`--face-hue${i + 1}`,h);
});
this.input?.style.setProperty("--input-hue",hue);
// emotions
const duration = 1;
const delay = -(duration * 0.99) * percent / 100;
const parts = ["right","left","mouth-lower","mouth-upper"];
parts.forEach(p => {
const el = this.face?.querySelector(`[data-${p}]`);
el?.style.setProperty(`--delay-${p}`,`${delay}s`);
});
// aria label
const faces = [
"Sad face",
"Slightly sad face",
"Straight face",
"Slightly happy face",
"Happy face"
];
let faceIndex = Math.floor(faces.length * percent / 100);
if (faceIndex === faces.length) --faceIndex;
this.face?.setAttribute("aria-label",faces[faceIndex]);
}
}
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