Click Button background-hover white (ok)
https://codepen.io/Ruddy/pen/09052b957d82a17bd6ca70ac6663dd6a
<div>Button</div>
div {
width: 220px;
height: 120px;
background: #222;
color: #fff;
text-align: center;
line-height: 120px;
font-size: 40px;
}
/* Ripple */
.ripple {
width: 0;
height: 0;
border-radius: 50%;
background: rgba(255, 255, 255, 0.4);
transform: scale(0);
position: absolute;
opacity: 1;
}
.rippleEffect {
animation: rippleDrop .6s linear;
}
@keyframes rippleDrop {
100% {
transform: scale(2);
opacity: 0;
}
}
$("div").click(function (e) {
// Remove any old one
$(".ripple").remove();
// Setup
var posX = $(this).offset().left,
posY = $(this).offset().top,
buttonWidth = $(this).width(),
buttonHeight = $(this).height();
// Add the element
$(this).prepend("<span class='ripple'></span>");
// Make it round!
if(buttonWidth >= buttonHeight) {
buttonHeight = buttonWidth;
} else {
buttonWidth = buttonHeight;
}
// Get the center of the element
var x = e.pageX - posX - buttonWidth / 2;
var y = e.pageY - posY - buttonHeight / 2;
// Add the ripples CSS and start the animation
$(".ripple").css({
width: buttonWidth,
height: buttonHeight,
top: y + 'px',
left: x + 'px'
}).addClass("rippleEffect");
});
Ví dụ mẫu:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>Material Design Bootstrap</title>
<style type="text/css" media="screen">
.buttonwhite {
width: 220px;
height: 120px;
background: #222;
color: #fff;
text-align: center;
line-height: 120px;
font-size: 40px;
}
.ripple {
width: 0;
height: 0;
border-radius: 50%;
background: rgba(255, 255, 255, 0.4);
transform: scale(0);
position: absolute;
opacity: 1;
}
.rippleEffect {
animation: rippleDrop .6s linear;
}
@keyframes rippleDrop {
100% {
transform: scale(2);
opacity: 0;
}
}
</style>
</head>
<body>
<div class="buttonwhite">Button</div>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script>
$("div").click(function(e) {
$(".ripple").remove();
var posX = $(this).offset().left,
posY = $(this).offset().top,
buttonWidth = $(this).width(),
buttonHeight = $(this).height();
$(this).prepend("<span class='ripple'></span>");
if(buttonWidth >= buttonHeight) {
buttonHeight = buttonWidth;
} else {
buttonWidth = buttonHeight;
}
var x = e.pageX - posX - buttonWidth / 2;
var y = e.pageY - posY - buttonHeight / 2;
$(".ripple").css({
width: buttonWidth,
height: buttonHeight,
top: y + 'px',
left: x + 'px'
}).addClass("rippleEffect");
});
</script>
</body>
</html>
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