按钮悬停变化

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html

css

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html

css

/* ~~~~~~~ INIT. BTN ~~~~~~~ */

.btn {		
	position: relative;	
	padding: 1.4rem 4.2rem;
	padding-right: 3.1rem;
	font-size: 1.4rem;
	color: var(--inv);
	letter-spacing: 1.1rem;
	text-transform: uppercase;
	-webkit-transition: all 600ms cubic-bezier(0.77, 0, 0.175, 1);
	transition: all 600ms cubic-bezier(0.77, 0, 0.175, 1);	
	-webkit-user-select: none;	
	   -moz-user-select: none;	
	    -ms-user-select: none;	
	        user-select: none;
}

.btn:before, .btn:after {
	content: '';
	position: absolute;	
	-webkit-transition: inherit;	
	transition: inherit;
	z-index: -1;
}

.btn:hover {
	color: var(--def);
	-webkit-transition-delay: .6s;
	        transition-delay: .6s;
}

.btn:hover:before {
	-webkit-transition-delay: 0s;
	        transition-delay: 0s;
}

.btn:hover:after {
	background: var(--inv);
	-webkit-transition-delay: .4s;
	        transition-delay: .4s;
}

/* From Top */

.from-top:before, 
.from-top:after {
	left: 0;
	height: 0;
	width: 100%;
}

.from-top:before {
	bottom: 0;	
	border: 1px solid var(--inv);
	border-top: 0;
	border-bottom: 0;
}

.from-top:after {
	top: 0;
	height: 0;
}

.from-top:hover:before,
.from-top:hover:after {
	height: 100%;
}

/* From Left */

.from-left:before, 
.from-left:after {
	top: 0;
	width: 0;
	height: 100%;
}

.from-left:before {
	right: 0;
	border: 1px solid var(--inv);
	border-left: 0;
	border-right: 0;	
}

.from-left:after {
	left: 0;
}

.from-left:hover:before,
.from-left:hover:after {
	width: 100%;
}

/* From Right */

.from-right:before, 
.from-right:after {
	top: 0;
	width: 0;
	height: 100%;
}

.from-right:before {
	left: 0;
	border: 1px solid var(--inv);
	border-left: 0;
	border-right: 0;	
}

.from-right:after {
	right: 0;
}

.from-right:hover:before,
.from-right:hover:after {
	width: 100%;
}

/* From Middle */

.from-middle:before {
	top: 0;
	left: 50%;
	height: 100%;
	width: 0;
	border: 1px solid var(--inv);
	border-left: 0;
	border-right: 0;
}

.from-middle:after {
	bottom: 0;
	left: 0;
	height: 0;
	width: 100%;
	background: var(--inv);
}

.from-middle:hover:before {
	left: 0;
	width: 100%;
}

.from-middle:hover:after {
	top: 0;
	height: 100%;
}

/* From Bottom */

.from-bottom:before, 
.from-bottom:after {
	left: 0;
	height: 0;
	width: 100%;
}

.from-bottom:before {
	top: 0;	
	border: 1px solid var(--inv);
	border-top: 0;
	border-bottom: 0;
}

.from-bottom:after {
	bottom: 0;
	height: 0;
}

.from-bottom:hover:before,
.from-bottom:hover:after {
	height: 100%;
}

/* ~~~~~~~~~~~~ GLOBAL SETTINGS ~~~~~~~~~~~~ */

*, *:before, *:after {
	-webkit-box-sizing: border-box;
	        box-sizing: border-box;
}

body {
	--def: #96B7C4; 	
	--inv: #fff;
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-webkit-box-pack: center;
	    -ms-flex-pack: center;
	        justify-content: center;
	-webkit-box-align: center;
	    -ms-flex-align: center;
	        align-items: center;
	-webkit-box-orient: vertical;
	-webkit-box-direction: normal;
	    -ms-flex-direction: column;
	        flex-direction: column;
	height: 100vh;
	width: 100%;
	background-image: linear-gradient(-25deg, #616161 0%, #96B7C4 100%);
}

html {
	font-size: 12px;
	font-family: 'Playfair Display', serif;
}

div {margin-bottom: 3rem;}
div:last-child {margin-bottom: 0;}

JavaScript

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