SCSS
$particles: 50;
$width: 500;
$height: 500;
$box-shadow: ();
$box-shadow2: ();
@for $i from 0 through $particles {
$box-shadow: $box-shadow,
random($width)-$width / 2 + px
random($height)-$height / 1.2 + px
hsl(random(360), 100, 50);
$box-shadow2: $box-shadow2, 0 0 #fff
}
@mixin keyframes ($animationName) {
@-webkit-keyframes #{$animationName} {
@content;
}
@-moz-keyframes #{$animationName} {
@content;
}
@-o-keyframes #{$animationName} {
@content;
}
@-ms-keyframes #{$animationName} {
@content;
}
@keyframes #{$animationName} {
@content;
}
}
@mixin animation-delay ($settings) {
-moz-animation-delay: $settings;
-webkit-animation-delay: $settings;
-o-animation-delay: $settings;
-ms-animation-delay: $settings;
animation-delay: $settings;
}
@mixin animation-duration ($settings) {
-moz-animation-duration: $settings;
-webkit-animation-duration: $settings;
-o-animation-duration: $settings;
-ms-animation-duration: $settings;
animation-duration: $settings;
}
@mixin animation ($settings) {
-moz-animation: $settings;
-webkit-animation: $settings;
-o-animation: $settings;
-ms-animation: $settings;
animation: $settings;
}
@mixin transform ($settings) {
transform: $settings;
-moz-transform: $settings;
-webkit-transform: $settings;
-o-transform: $settings;
-ms-transform: $settings;
}
body {
margin:0;
padding:0;
background: #000;
overflow: hidden;
}
.pyro > .before, .pyro > .after {
position: absolute;
width: 5px;
height: 5px;
border-radius: 50%;
box-shadow: $box-shadow2;
@include animation((1s bang ease-out infinite backwards, 1s gravity ease-in infinite backwards, 5s position linear infinite backwards));
}
.pyro > .after {
@include animation-delay((1.25s, 1.25s, 1.25s));
@include animation-duration((1.25s, 1.25s, 6.25s));
}
@include keyframes(bang) {
to {
box-shadow:$box-shadow;
}
}
@include keyframes(gravity) {
to {
@include transform(translateY(200px));
opacity: 0;
}
}
@include keyframes(position) {
0%, 19.9% {
margin-top: 10%;
margin-left: 40%;
}
20%, 39.9% {
margin-top: 40%;
margin-left: 30%;
}
40%, 59.9% {
margin-top: 20%;
margin-left: 70%
}
60%, 79.9% {
margin-top: 30%;
margin-left: 20%;
}
80%, 99.9% {
margin-top: 30%;
margin-left: 80%;
}
}
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