Un générateurs de backgrounds animés en CSS

Vous souhaitez ajouter un fond animé à votre site web sans l’alourdir avec une vidéo. Alors, je vous invite à découvrir ce générateur de backgrounds animés en CSS.

3 démos sont disponibles et vous pouvez personnaliser très facilement la démo de votre choix. Vous pourrez récupérer le code pour l’utiliser facilement sur votre site internet.

background animé en css

Pour l’aperçu ci-dessus le code à intégrer est le suivant :

  • la partie HTML :
<div class="background">
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
<span></span>
</div>
  • la partie CSS :
@keyframes move {
    100% {
        transform: translate3d(0, 0, 1px) rotate(360deg);
    }
}

.background {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    background: #3E1E68;
    overflow: hidden;
}

.background span {
    width: 20vmin;
    height: 20vmin;
    border-radius: 20vmin;
    backface-visibility: hidden;
    position: absolute;
    animation: move;
    animation-duration: 45;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}


.background span:nth-child(0) {
    color: #FFACAC;
    top: 71%;
    left: 57%;
    animation-duration: 55s;
    animation-delay: -48s;
    transform-origin: 25vw 17vh;
    box-shadow: -40vmin 0 5.475471058767184vmin currentColor;
}
.background span:nth-child(1) {
    color: #583C87;
    top: 3%;
    left: 3%;
    animation-duration: 7s;
    animation-delay: -25s;
    transform-origin: 14vw 8vh;
    box-shadow: 40vmin 0 5.3638245158751285vmin currentColor;
}
.background span:nth-child(2) {
    color: #583C87;
    top: 13%;
    left: 40%;
    animation-duration: 10s;
    animation-delay: -36s;
    transform-origin: 13vw 17vh;
    box-shadow: -40vmin 0 5.063323438010432vmin currentColor;
}
.background span:nth-child(3) {
    color: #583C87;
    top: 25%;
    left: 57%;
    animation-duration: 25s;
    animation-delay: -37s;
    transform-origin: -21vw 6vh;
    box-shadow: -40vmin 0 5.9019939201704075vmin currentColor;
}
.background span:nth-child(4) {
    color: #E45A84;
    top: 17%;
    left: 93%;
    animation-duration: 54s;
    animation-delay: -1s;
    transform-origin: -10vw 12vh;
    box-shadow: 40vmin 0 5.087804900562675vmin currentColor;
}
.background span:nth-child(5) {
    color: #583C87;
    top: 73%;
    left: 32%;
    animation-duration: 30s;
    animation-delay: -2s;
    transform-origin: -20vw -23vh;
    box-shadow: -40vmin 0 5.203032032618411vmin currentColor;
}
.background span:nth-child(6) {
    color: #E45A84;
    top: 82%;
    left: 31%;
    animation-duration: 52s;
    animation-delay: -5s;
    transform-origin: -8vw -14vh;
    box-shadow: 40vmin 0 5.274497883189334vmin currentColor;
}
.background span:nth-child(7) {
    color: #FFACAC;
    top: 68%;
    left: 73%;
    animation-duration: 34s;
    animation-delay: -23s;
    transform-origin: 6vw -4vh;
    box-shadow: -40vmin 0 5.965035797871222vmin currentColor;
}
.background span:nth-child(8) {
    color: #FFACAC;
    top: 47%;
    left: 83%;
    animation-duration: 25s;
    animation-delay: -4s;
    transform-origin: 20vw -8vh;
    box-shadow: -40vmin 0 5.709503055213773vmin currentColor;
}
.background span:nth-child(9) {
    color: #E45A84;
    top: 49%;
    left: 80%;
    animation-duration: 17s;
    animation-delay: -10s;
    transform-origin: 10vw -6vh;
    box-shadow: 40vmin 0 5.01741502652619vmin currentColor;
}
.background span:nth-child(10) {
    color: #E45A84;
    top: 22%;
    left: 36%;
    animation-duration: 23s;
    animation-delay: -39s;
    transform-origin: 2vw 5vh;
    box-shadow: 40vmin 0 5.992099872461056vmin currentColor;
}
.background span:nth-child(11) {
    color: #FFACAC;
    top: 58%;
    left: 99%;
    animation-duration: 53s;
    animation-delay: -46s;
    transform-origin: 1vw -2vh;
    box-shadow: -40vmin 0 5.732471143525998vmin currentColor;
}
.background span:nth-child(12) {
    color: #FFACAC;
    top: 30%;
    left: 46%;
    animation-duration: 50s;
    animation-delay: -13s;
    transform-origin: -1vw -5vh;
    box-shadow: -40vmin 0 5.2892355107440805vmin currentColor;
}
.background span:nth-child(13) {
    color: #583C87;
    top: 6%;
    left: 10%;
    animation-duration: 25s;
    animation-delay: -21s;
    transform-origin: 4vw -19vh;
    box-shadow: -40vmin 0 5.570193173767737vmin currentColor;
}
.background span:nth-child(14) {
    color: #E45A84;
    top: 57%;
    left: 19%;
    animation-duration: 42s;
    animation-delay: -49s;
    transform-origin: -15vw 7vh;
    box-shadow: 40vmin 0 5.102584783977585vmin currentColor;
}
.background span:nth-child(15) {
    color: #FFACAC;
    top: 83%;
    left: 51%;
    animation-duration: 38s;
    animation-delay: -40s;
    transform-origin: 4vw -8vh;
    box-shadow: -40vmin 0 5.845897450444361vmin currentColor;
}
.background span:nth-child(16) {
    color: #E45A84;
    top: 69%;
    left: 65%;
    animation-duration: 28s;
    animation-delay: -3s;
    transform-origin: 25vw 16vh;
    box-shadow: 40vmin 0 5.5897568143551055vmin currentColor;
}
.background span:nth-child(17) {
    color: #FFACAC;
    top: 27%;
    left: 5%;
    animation-duration: 23s;
    animation-delay: -18s;
    transform-origin: 19vw 0vh;
    box-shadow: 40vmin 0 5.736472025401282vmin currentColor;
}
.background span:nth-child(18) {
    color: #E45A84;
    top: 30%;
    left: 70%;
    animation-duration: 19s;
    animation-delay: -32s;
    transform-origin: 24vw 1vh;
    box-shadow: -40vmin 0 5.0849280816458915vmin currentColor;
}
.background span:nth-child(19) {
    color: #FFACAC;
    top: 38%;
    left: 67%;
    animation-duration: 31s;
    animation-delay: -21s;
    transform-origin: 19vw 12vh;
    box-shadow: -40vmin 0 5.665153718066155vmin currentColor;
}

Site officiel : https://wweb.dev/resources/animated-css-background-generator

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