mat-ripple/demo/css/main.css

Material design Ripple effect.

@import url('https://fonts.googleapis.com/css?family=Roboto');

:root {
	--primary-color: #3f51b5;
	--accent-color: #ff4081;
	--text-color: rgba(0, 0, 0, 0.87);
	--border-color: rgba(0, 0, 0, 0.54);
	--shadow: 0px 2px 4px -1px rgba(0, 0, 0, 0.2),
		0px 4px 5px 0px rgba(0, 0, 0, 0.14),
		0px 1px 10px 0px rgba(0, 0, 0, 0.12);
}
* {
	box-sizing: border-box;
	user-select: none;
}
html,
body {
	height: 100%;
}

body {
	margin: 0;
	padding: 0;
	height: 100%;
	font-family: 'Roboto', sans-serif;
	display: grid;
	place-items: center center;
	overflow: hidden;
	color: var(--text-color);
}

.item {
	width: 300px;
	height: 300px;
	position: relative;
	cursor: pointer;
	box-shadow: var(--shadow);
	border-radius: 4px;
	display: grid;
	place-content: center;
}

#control {
	height: 100px;
	width: 500px;
	display: grid;
	grid-template-rows: 1fr 1fr;
}

.row {
	display: grid;
	grid-auto-flow: column;
	gap: 16px;
	align-content: center;
}
input {
	caret-color: var(--primary-color);
}

/** CHECKBOX */
.overlay {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: var(--accent-color);
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.2s cubic-bezier(0.35, 0, 0.25, 1);
}
.checkbox .field {
	display: grid;
	grid-auto-flow: column;
	align-items: center;
	grid-template-columns: 50px 1fr;
}
.checkbox input {
	display: none;
}

.checkbox label {
	width: 50px;
	height: 50px;
	padding: 16px;
	position: relative;
	border-radius: 50%;
	cursor: pointer;
	overflow: hidden;
}
.checkbox label:hover .overlay {
	opacity: 0.05;
}
.input__frame {
	color: var(--border-color);
	border: 2px solid;
	border-radius: 3px;
	height: 100%;
	transition: all 400ms cubic-bezier(0.23, 1, 0.32, 1);
	position: relative;
}
.input__frame svg {
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	position: absolute;
	width: 100%;
}
.input__frame path {
	stroke-dashoffset: 22.91026;
	stroke-dasharray: 22.91026;
	stroke-width: 2.13333px;
	transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1);
}

input:checked ~ .input__frame {
	color: var(--accent-color);
	background: var(--accent-color);
}
input:checked ~ .input__frame path {
	stroke-dashoffset: 0;
}

/** UNDERLINE */
.underline label {
	transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1);
	transform: translate3d(0, 100%, 0);
	display: block;
	cursor: text;
	font-size: 1em;
	color: var(--border-color);
	width: fit-content;
	/* transform: ; */
}
.underline label.filled {
	transform: translate3d(-10%, 0, 0) scale(0.8);
}
.underline label.focused {
	color: var(--primary-color);
}

.underline input {
	transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1);
	border: none;
	border-bottom: 2px solid var(--border-color);
	border-radius: 0px;
	font-size: 1em;
	outline: none;
	width: 100%;
	padding-bottom: 0.4em;
}
.underline input:focus {
	border-color: var(--primary-color);
}

/* ######################## */