HTML
<button class="bubbly-button">Click me!</button>
CSS
.bubbly-button {
font-family: "Helvetica", "Arial", sans-serif;
display: inline-block;
font-size: 1em;
padding: 1em 2em;
margin-top: 100px;
margin-bottom: 60px;
-webkit-appearance: none;
text-align:
appearance: none;
background-color: #ff0081;
color: #fff;
border-radius: 4px;
border: none;
cursor: pointer;
position: relative;
transition: transform ease-in 0.1s, box-shadow ease-in 0.25s;
box-shadow: 0 2px 25px rgba(255, 0, 130, 0.5);
}
.bubbly-button:focus {
outline: 0;
}
.bubbly-button:before, .bubbly-button:after {
position: absolute;
content: "";
display: block;
width: 140%;
height: 100%;
left: -20%;
z-index: -1000;
transition: all ease-in-out 0.5s;
background-repeat: no-repeat;
}
.bubbly-button:before {
display: none;
top: -75%;
background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 20%, #ff0081 20%, transparent 30%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);
background-size: 10% 10%, 20% 20%, 15% 15%, 20% 20%, 18% 18%, 10% 10%, 15% 15%, 10% 10%, 18% 18%;
}
.bubbly-button:after {
display: none;
bottom: -75%;
background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);
background-size: 15% 15%, 20% 20%, 18% 18%, 20% 20%, 15% 15%, 10% 10%, 20% 20%;
}
.bubbly-button:active {
transform: scale(0.9);
background-color: #e60074;
box-shadow: 0 2px 25px rgba(255, 0, 130, 0.2);
}
.bubbly-button.animate:before {
display: block;
animation: topBubbles ease-in-out 0.75s forwards;
}
.bubbly-button.animate:after {
display: block;
animation: bottomBubbles ease-in-out 0.75s forwards;
}
@keyframes topBubbles {
0% {
background-position: 5% 90%, 10% 90%, 10% 90%, 15% 90%, 25% 90%, 25% 90%, 40% 90%, 55% 90%, 70% 90%;
}
50% {
background-position: 0% 80%, 0% 20%, 10% 40%, 20% 0%, 30% 30%, 22% 50%, 50% 50%, 65% 20%, 90% 30%;
}
100% {
background-position: 0% 70%, 0% 10%, 10% 30%, 20% -10%, 30% 20%, 22% 40%, 50% 40%, 65% 10%, 90% 20%;
background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;
}
}
@keyframes bottomBubbles {
0% {
background-position: 10% -10%, 30% 10%, 55% -10%, 70% -10%, 85% -10%, 70% -10%, 70% 0%;
}
50% {
background-position: 0% 80%, 20% 80%, 45% 60%, 60% 100%, 75% 70%, 95% 60%, 105% 0%;
}
100% {
background-position: 0% 90%, 20% 90%, 45% 70%, 60% 110%, 75% 80%, 95% 70%, 110% 10%;
background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;
}
}
JS
<script>var animateButton = function(e) {
e.preventDefault;
//reset animation
e.target.classList.remove('animate');
e.target.classList.add('animate');
setTimeout(function(){
e.target.classList.remove('animate');
},700);
};
var bubblyButtons = document.getElementsByClassName("bubbly-button");
for (var i = 0; i < bubblyButtons.length; i++) {
bubblyButtons[i].addEventListener('click', animateButton, false);
}
</script>