• css3烟花效果


    <!DOCTYPE html>
    <html lang="en">
    <head>
    <meta charset="UTF-8" />
    <title>Document</title>
    <style type="text/css">


    * {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    }
    body {
    font-size: 32px;
    background: #2C1C44;
    font-family: sans-serif;
    color: #FFF;
    font-family: "Playfair Display", serif;
    /*margin: 50px;*/
    margin: 0;
    overflow: hidden;
    }
    #container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    perspective: 1500px;

    }
    #card {
    text-align: center;
    position: relative;
    display: block;
    max- 600px;
    600px;
    height: 400px;
    background: #3F2860;
    overflow: hidden;
    box-shadow: 0 0 0.5em rgba(0,0,0,0.4);
    box-shadow: 0.25em 0.25em 0px 0px rgba(0, 0, 0, 0.3);

    transition: 0.6s;
    transform-style: preserve-3d;
    overflow: visible;
    }
    .text {
    position: absolute;
    top: 0;
    z-index: 5;
    100%;
    height: 100%;
    color: #E49BD4;
    word-wrap: break-word;
    }
    p {
    font-weight: 400;
    font-size: 1em;
    }
    h1 {
    100%;
    height: 100%;
    line-height: 350px;
    font-size: 6em;
    font-weight: 900;
    position: relative;
    margin: 0;
    }

    /* FOR HOVER
    ---------------------------------------*/
    .front, .back {
    background: #3F2860;
    100%;
    height: 100%;
    display: block;
    top: 0;
    left: 0;
    position: absolute;
    backface-visibility: hidden;
    overflow: hidden;
    }
    .back {
    z-index:10;
    transform: rotateY(180deg);
    }
    /*
    #container:hover #card{
    transform: rotateY(-180deg);
    }
    */
    .back p {
    line-height: normal;
    position: relative;
    margin:0 5%;
    top: 50%;
    transform: translateY(-50%);
    }

    @media only screen and (max- 600px) {
    h1 { line-height: 175px;}
    #card {
    300px;
    height: 400px;
    }

    }
    .firework-grp {
    display: block;
    100%;
    height: 100%;
    position: absolute;
    color: white;
    color: #535396;
    }
    .firework-grp2{
    transform: rotate(180deg);
    color: #2C1C44;
    z-index: 6;
    }
    .firework-grp3{
    transform: rotate(-75deg);
    color: #E339BD;
    z-index: 7;
    }
    .firework {
    font-size: 10px;
    display: block;
    8.5em;
    height: 8.5em;
    position: absolute;
    }

    /* SIZES
    ------------------------------------*/
    .size05 {
    transform: scale(0.5);
    }
    .size08 {
    transform: scale(0.8);
    }
    .size13 {
    transform: scale(1.3);
    }
    .size15 {
    transform: scale(1.5);
    }
    .size18 {
    transform: scale(1.8);
    }
    .size20 {
    transform: scale(2);
    }

    /* POSITION
    ------------------------------------*/
    .pos1 {
    left: 56%;
    top: 65%;
    }
    .pos2 {
    left: 25%;
    top: 15%;
    }
    .pos3 {
    left: 50%;
    top: 25%;
    }
    .pos4 {
    left: -5%;
    top: 50%;
    }
    .pos5 {
    left: 90%;
    top: 65%;
    }
    .pos6 {
    left: 35%;
    top: 75%;
    }
    .pos7 {
    left: 5%;
    top: -5%;
    }
    .pos8 {
    left: 75%;
    top: 20%;
    }



    /* FIREWORK
    ------------------------------------*/
    .drops-grp {
    display: block;
    8.5em;
    height: 8.5em;
    position: absolute;
    }
    .drops-grp2 {
    display: block;
    8.5em;
    height: 8.5em;
    position: absolute;
    transform: rotate(45deg);
    }
    .drop {
    display: block;
    1em;
    height: 2em;
    overflow: hidden;
    position: absolute;
    opacity: 0;
    }
    .drop:before {
    content: "";
    display: block;
    1em;
    height: 1em;
    background: currentColor;
    border-radius: 50%;
    }
    .drop:after {
    content: "";
    display: block;
    position: relative;
    top: -0.4em;
    0;
    height: 0;
    border-top: 1.4em solid currentColor;
    border-left: 0.5em solid transparent;
    border-right: 0.5em solid transparent;
    }
    .drop-1 {
    left:3.75em;
    top: 0;
    animation: drop1anim 1s ease-in-out infinite;
    }
    .drop-2 {
    top: 3.25em;
    right: 0;
    animation: drop2anim 1s ease-in-out infinite;
    }
    .drop-3 {
    left:3.75em;
    bottom: 0;
    animation: drop3anim 1s ease-in-out infinite;
    }
    .drop-4 {
    top: 3.25em;
    left: 0;
    animation: drop4anim 1s ease-in-out infinite;
    }
    .firework-2 .drop-1 {
    animation-delay: 0.5s
    }
    .firework-2 .drop-2 {
    animation-delay: 0.5s
    }
    .firework-2 .drop-3 {
    animation-delay: 0.5s
    }
    .firework-2 .drop-4 {
    animation-delay: 0.5s
    }

    /* FIREWORK DELAY
    ------------------------------------*/
    .delay1 .drop-1 {
    animation-delay: 0.25s
    }
    .delay1 .drop-2 {
    animation-delay: 0.25s
    }
    .delay1 .drop-3 {
    animation-delay: 0.25s
    }
    .delay1 .drop-4 {
    animation-delay: 0.25s
    }

    .delay2 .drop-1 {
    animation-delay: 0.75s
    }
    .delay2 .drop-2 {
    animation-delay: 0.75s
    }
    .delay2 .drop-3 {
    animation-delay: 0.75s
    }
    .delay2 .drop-4 {
    animation-delay: 0.75s
    }

    /* keyframes
    ------------------------------------*/
    @keyframes drop1anim {
    0% {
    top:3.25em;
    opacity: 0;
    transform: scale(0.3);
    }
    25% {
    opacity: 0;
    }
    50% {
    opacity: 1;
    transform: scale(1);
    }
    100% {
    top: -0.75em;
    opacity: 0;
    transform: scale(0.3);
    }
    }
    @keyframes drop2anim {
    0% {
    right:3.75em;
    opacity: 0;
    transform: scale(0.3) rotate(90deg);
    }
    25% {
    opacity: 0;
    }
    50% {
    opacity: 1;
    transform: scale(1) rotate(90deg);
    }
    100% {
    right: -0.25em;
    opacity: 0;
    transform: scale(0.3) rotate(90deg);
    }
    }
    @keyframes drop3anim {
    0% {
    bottom:3.25em;
    opacity: 0;
    transform: scale(0.3) rotate(180deg);
    }
    25% {
    opacity: 0;
    }
    50% {
    opacity: 1;
    transform: scale(1) rotate(180deg);
    }
    100% {
    bottom: -0.75em;
    opacity: 0;
    transform: scale(0.3) rotate(180deg);
    }
    }
    @keyframes drop4anim {
    0% {
    left:3.75em;
    opacity: 0;
    transform: scale(0.3) rotate(-90deg);
    }
    25% {
    opacity: 0;
    }
    50% {
    opacity: 1;
    transform: scale(1) rotate(-90deg);
    }
    100% {
    left: -0.25em;
    opacity: 0;
    transform: scale(0.3) rotate(-90deg);
    }
    }
    </style>
    </head>
    <body>

    <div class="text">
    <h1>颜色、位置、大小都是可以控制的</h1>
    </div>

    <div class="firework-grp firework-grp2">
    <div class="firework size05 pos1 ">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size08 pos2 delay1">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework pos3 delay2">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size15 pos4 ">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size18 pos5 delay1">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size20 pos6 delay2">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size13 pos7">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size05 pos8">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    </div>
    <div class="firework-grp firework-grp3">
    <div class="firework size05 pos1 ">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size08 pos2 delay1">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework pos3 delay2">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size15 pos4 ">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size18 pos5 delay1">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size20 pos6 delay2">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size13 pos7">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    <div class="firework size05 pos8">
    <div class="drops-grp">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    <div class="drops-grp drops-grp2">
    <span class="drop drop-1"></span>
    <span class="drop drop-2"></span>
    <span class="drop drop-3"></span>
    <span class="drop drop-4"></span>
    </div>
    </div>
    </div>

    </div>

    <!--<div class="back">

    <div class="text">
    <p>Belle et heureuse année !<br>-<br>Beautiful and happy new year!</p>
    </div>

    </div>-->

    </div>

    </div>
    </body>
    </html>

    
    
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  • 原文地址:https://www.cnblogs.com/seven077/p/6379083.html
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