How to implement:

With tailwind installed in your project tutorial, implement these tailwind classes in your parent div where it will reflect the background.

Code:

import styles from './AnimatedBackground.module.css';

export default function Background() {
  return (
    <div className="flex flex-col items-center h-screen w-full">
      <div className={styles.context}>
            <div className={styles.area}>
                <ul className={styles.circles}>
                    {[...Array(10)].map((_, index) => (
                        <li
                            key={index}
                            className={`${styles['animate-circle-' + (index + 1)]}`}
                        ></li>
                    ))}
                </ul>

                {your page / component }
            </div>
        </div>
    </div>
  );
}

Code: AnimatedBackground.module.css

.context {
    width: 100%;
    height: 100%;
}

.area {
    background: #290d6b;
    background: -webkit-linear-gradient(to left, #8f94fb, #060e09);
    width: 100%;
    height: 100%;
    position: relative;
    
    display: flex;
    flex-direction: column;
}

.circles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}

.circles li {
    position: absolute;
    display: block;
    list-style: none;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    animation: animate 25s linear infinite;
}

/* Adicionando uma classe comum para estilizar os quadrados de animação */
.square-animation {
    border-radius: 0;
    background-color: rgba(255, 255, 255, 0.2);
}

.circles li:nth-child(1) {
    left: 25%;
    width: 80px;
    height: 80px;
    animation-delay: 0s;
}

.circles li:nth-child(2) {
    left: 10%;
    width: 20px;
    height: 20px;
    animation-delay: 0s;
    animation-duration: 12s;
}

.circles li:nth-child(3) {
    left: 70%;
    width: 20px;
    height: 20px;
    animation-delay: 0s;
}

.circles li:nth-child(4) {
    left: 40%;
    width: 60px;
    height: 60px;
    animation-delay: 0s;
    animation-duration: 18s;
}

.circles li:nth-child(5) {
    left: 65%;
    width: 20px;
    height: 20px;
    animation-delay: 0s;
}

.circles li:nth-child(6) {
    left: 75%;
    width: 110px;
    height: 110px;
    animation-delay: 0s;
    animation-duration: 13s;
}

.circles li:nth-child(7) {
    left: 35%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;

    animation-duration: 12s;
}

.circles li:nth-child(8) {
    left: 50%;
    width: 25px;
    height: 25px;
    animation-delay: 0s;
    animation-duration: 45s;
}

.circles li:nth-child(9) {
    left: 20%;
    width: 15px;
    height: 15px;
    animation-delay: 0s;
    animation-duration: 35s;
}

.circles li:nth-child(10) {
    left: 85%;
    width: 150px;
    height: 150px;
    animation-delay: 0s;
    animation-duration: 8s;
}

@keyframes animate {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
        border-radius: 20%;
    }

    100% {
        transform: translateY(-1000px) rotate(720deg);
        opacity: 0;
        border-radius: 50%;
    }
}

View background:

Responsive: Mobile and desktop:

Note

If this background has served you in any way, consider following me on github or supporting me to continue working at BacksEasy.

Any questions, criticisms or improvements, please suggest them through my Linkdin..