* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: "Poppins", sans-serif;
}

html,
body {
	/* background-color: #000000; */
	display: grid;
	height: 100%;
	place-items: center;
	overflow: hidden;
}

/*流光溢彩*/
.btn-1 {
	position: relative;
	height: 60px;
	width: 200px;
	margin-top: 500px;
	margin-left: 10px;
	margin: 0 35px;
	border-radius: 50px;
	border: none;
	outline: none;
	background: #fff;
	color: #111;
	font-size: 20px;
	letter-spacing: 2px;
	cursor: pointer
}

.btn-1:first-child:hover {
	background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
	background-size: 400%;
}


.btn-1:last-child:hover {
	background: linear-gradient(90deg, #fa7199, #f5ce62, #e43603, #fa7199);
	background-size: 400%;
}

.btn-1:first-child:before,
.btn-1:last-child:before {
	content: '';
	position: absolute;
	background: inherit;
	top: -5px;
	right: -5px;
	bottom: -5px;
	left: -5px;
	border-radius: 50px;
	filter: blur(20px);
	opacity: 0;
	transition: opacity 0.5s;
}

.btn-1:first-child:hover:before,
.btn-1:last-child:hover:before {
	opacity: 1;
	z-index: -1;
}

.btn-1:hover {
	z-index: 1;
	animation: glow 8s linear infinite;
}

@keyframes glow {
	0% {
		background-position: 0%;
	}

	100% {
		background-position: 400%;
	}
}

/*flash*/
.btn-2 {
	border: 2px solid black;
	background: transparent;
	text-transform: uppercase;
	color: black;
	padding: 15px 50px;
	outline: none;
	overflow: hidden;
	position: relative;
	z-index: 20;
}

.btn-2:after {
	content: "";
	display: block;
	position: absolute;
	top: -36px;
	left: -100px;
	background: black;
	width: 50px;
	height: 125px;
	opacity: 20%;
	transform: rotate(-45deg);
}

.btn-2:hover::after {
	left: 120%;
	transition: all 600ms cubic-bezier(0.3, 1, 0.2, 1);
	-webkit-transform: all 600ms cubic-bezier(0.3, 1, 0.2, 1);
}

/* 波动效果 */
.btn-3 {

	width: 600px;
	height: 400px;
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
}

.btn-3 button {
	left: 50%;
	transform: translateX(-50%);
	position: relative;
	text-decoration: none;
	font-size: 24px;
	display: block;
	width: 200px;
	height: 40px;
	text-align: center;
	line-height: 40px;
	overflow: hidden;
	margin-top: 20px;
	transition: 0.8s linear;
	box-sizing: border-box;

}

.btn-3 button::before {
	left: 0;
	content: "";
	position: absolute;
	z-index: -1;
	transition: 0.8s linear;
}

.btn-3 button.up {
	color: #ff6348;

	border: 1px solid #ff6348;
}

.btn-3 button.up::before {
	top: 0;
	width: 100%;
	height: 0;
	border-bottom-left-radius: 50%;
	border-bottom-right-radius: 50%;
	background: #ff6348;
}

.btn-3 button.up:hover::before {
	height: 200%;
}

.btn-3 button.up:hover {
	color: black;
}

.btn-3 button.left {
	color: #1e90ff;
	border: 1px solid #1e90ff;
}

.btn-3 button.left::before {
	top: 0;
	width: 0;
	height: 100%;
	border-top-right-radius: 50%;
	border-bottom-right-radius: 50%;
	background: #1e90ff;
}

.btn-3 button.left:hover::before {
	width: 200%;
}

.btn-3 button.left:hover {
	color: white;
}

/* 流光边框 */
.btn-4 {
	position: relative;
	display: inline-block;
	padding: 15px 30px;
	color: #2196f3;
	text-transform: uppercase;
	letter-spacing: 4px;
	text-decoration: none;
	font-size: 24px;
	overflow: hidden;
	transition: 0.2s;
}

.btn-4 span {
	position: absolute;
	display: block;
}

.btn-4 span:nth-child(1) {
	top: 0;
	left: -100%;
	width: 100%;
	height: 2px;
	background: linear-gradient(90deg, transparent, #2196f3);
}

.btn-4:hover span:nth-child(1) {
	left: 100%;
	transition: 1s;
}

.btn-4 span:nth-child(3) {
	bottom: 0;
	right: -100%;
	width: 100%;
	height: 2px;
	background: linear-gradient(270deg, transparent, #2196f3);
}

.btn-4:hover span:nth-child(3) {
	right: 100%;
	transition: 1s;
	transition-delay: 0.5s;
}


.btn-4 span:nth-child(2) {
	top: -100%;
	right: 0;
	width: 2px;
	height: 100%;
	background: linear-gradient(180deg, transparent, #2196f3);
}

.btn-4:hover span:nth-child(2) {
	right: 100%;
	transition: 1.5s;
	transition-delay: 0.5s;
}


.btn-4 span:nth-child(4) {
	bottom: -100%;
	left: 0;
	width: 2px;
	height: 100%;
	background: linear-gradient(360deg, transparent, #2196f3);
}

.btn-4:hover span:nth-child(4) {
	bottom: 100%;
	transition: 1s;
	transition-delay: 0.75s;
}

/* 折叠双层按钮 */
.btn-5 {
	position: relative;
	display: inline-block;
	width: 160px;
	height: 50px;
	/* box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2); */
}

.btn-5 span {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: #6c4ba5;
	color: #ffaa7f;
	display: flex;
	align-items: center;
	justify-content: center;
	text-transform: uppercase;
	font-size: 18px;
}

.btn-5 span:nth-child(2) {
	color: #6c4ba5;
	background: #ffaa7f;
	overflow: hidden;
	z-index: 2;
	transition: 0.5s;
	clip-path: polygon(59% 1%, 100% 0%, 100% 100%, 60% 100%, 40% 51%);
}

.btn-5 span:nth-child(2):hover {
	clip-path: polygon(0 0, 100% 0%, 100% 100%, 0 100%, 0 54%);
}

.btn-5 span:nth-child(1):hover~span:nth-child(2) {
	clip-path: polygon(100% 0, 100% 0%, 100% 100%, 100% 100%, 100% 52%);
}

/* btn6 */
.btn-6 {
	position: relative;
	padding: 10px 30px;
	margin: 0 45px;
	color: #21ebff;
	text-decoration: none;
	font-size: 20px;
	text-transform: uppercase;
	transition: 0.5s;
	overflow: hidden;
	-webkit-box-reflect: below 1px linear-gradient(transparent, #0003);
}

.btn-6:hover {
	background: #21ebff;
	color: #111;
	box-shadow: 0 0 50px #21ebff;
	transition-delay: 0.5s;
}

.btn-6:nth-child(1) {
	filter: hue-rotate(115deg);
}

.btn-6:nth-child(3) {
	filter: hue-rotate(270deg);
}

.btn-6::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 10px;
	height: 10px;
	border-top: 2px solid #21ebff;
	border-left: 2px solid #21ebff;
	transition: 0.5s;
	transition-delay: 0.5s;
}

.btn-6:hover::before {
	width: 100%;
	height: 100%;
	transition-delay: 0s;
}

.btn-6::after {
	content: '';
	position: absolute;
	right: 0;
	bottom: 0;
	width: 10px;
	height: 10px;
	border-bottom: 2px solid #21ebff;
	border-right: 2px solid #21ebff;
	transition: 0.5s;
	transition-delay: 0.5s;
}

.btn-6:hover::after {
	width: 100%;
	height: 100%;
	transition-delay: 0s;
}

/* 边框变色 */

.container {
	text-align: center;
	padding: 200px 0;
}

.btn-7 {
	background: none;
	border: 0;
	outline: 0;
	color: #2196f3;
	font-family: 'JetBrains Mono';
	font-size: 20px;
	cursor: pointer;
	border: 2px solid #2196f3;
	width: 250px;
	height: 50px;
	position: relative;
}

.btn-7 label {
	position: absolute;
	left: 0;
	top: 0;
	line-height: 50px;
	width: 100%;
	height: 100%;
	z-index: 1;
	background-color: #FFFFFF;
}

.btn-7::before {
	content: '';
	position: absolute;
	left: -2px;
	top: -2px;
	width: 0px;
	height: 0;
	z-index: 0;
	background-color: #e94118;
	transition: width .5s, height .5s;
}

.btn-7::after {
	content: '';
	position: absolute;
	right: -2px;
	bottom: -2px;
	width: 0;
	height: 0;
	z-index: 0;
	background-color: #e94118;
	transition: width .5s, height .5s;

	/* width: calc(100% + 4px);
  height: calc(100% + 4px); */
}

.btn-7:hover {
	color: #e94118;
}

.btn-7:hover::before {
	width: calc(100% + 4px);
	height: calc(100% + 4px);
}

.btn-7:hover::after {
	width: calc(100% + 4px);
	height: calc(100% + 4px);
}


/* 绘制边框 btn-8*/

.btn-8 {
	position: relative;
	width: 240px;
	height: 60px;
	text-align: center;
}

.rectangle {
	stroke-width: 8px;
	stroke: #ff6348;
	fill: transparent;
	/* Core part of the animation */
	stroke-dasharray: 100 500;
	stroke-dashoffset: -372;
}

.btn {
	color: black;
	font-size: 18px;
	letter-spacing: 6px;
	position: relative;
	top: -48px;
}

@keyframes extend {
	to {
		stroke-dasharray: 600;
		stroke-dashoffset: 0;
		stroke-width: 2;
	}
}

.btn-8:hover .rectangle {
	animation: 0.5s extend linear forwards;
}

.btn-9 {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	width: 180px;
	height: 50px;
	/* border: 1px solid #fff; */
	background: #fff;
	color: #ff6348;
	font-size: 18px;
	line-height: 50px;
	text-align: center;
	text-transform: uppercase;
	text-decoration: none;
	font-family: geneva;
}

.btn-9::before,
.btn-9::after,
.btn-9 span::before,
.btn-9 span::after {
	content: '';
	position: absolute;
	width: 10px;
	height: 10px;
	background: #ff6348;
	mix-blend-mode: hue;
	transition: 1s;
}

.btn-9::before {
	top: -2px;
	left: -2px;
}

.btn-9::after {
	top: -2px;
	right: -2px;
}

.btn-9 span::before {
	bottom: -2px;
	left: -2px;
}

.btn-9 span::after {
	bottom: -2px;
	right: -2px;
}

/* 上下左右 */
.btn-9:hover::before,
.btn-9:hover::after,
.btn-9:hover span::before,
.btn-9:hover span::after {
	width: calc(180px / 2);
	height: calc(50px / 2);
}

/*波动按钮 btn-10*/
.btn-10 {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	display: block;
	padding: 10px 15px;
	border: 1px solid #262626;
	color: #262626;
	text-transform: uppercase;
	text-decoration: none;
	letter-spacing: 2px;
	transition: .5s;
}

.btn-10:hover {
	background: #262626;
	color: #fff;
}

.btn-10:before {
	content: '';
	position: absolute;
	top: -1px;
	left: -1px;
	width: 100%;
	height: 100%;
	background: transparent;
	border: 1px solid #262626;

}

.btn-10:hover:before {
	transform: scale(1.2, 1.4);
	opacity: 0;
	transition: .5s;
}

/*btn-11 故障风*/
.btn-11,
.btn-11::after {
	font-family: 'Do Hyeon', sans-serif;
	width: 260px;
	height: 80px;
	text-align: center;
	font-size: 22px;
	line-height: 80px;
	color: rgb(255, 251, 251);
	background: linear-gradient(30deg, transparent 10%, rgb(255, 136, 0) 10% 95%, rgb(0, 255, 149) 95%);
	box-shadow: 5px 0 0 rgb(0, 204, 255);
	cursor: pointer;
	position: relative;
}

.btn-11::after {
	content: 'Button';
	position: absolute;
	top: 0;
	left: 0;
	text-shadow: -5px -2px 0 rgb(0, 183, 255),
		5px 2px 0 rgb(0, 255, 115);
	visibility: hidden;

}

.btn-11:hover::after {
	animation: san 1s;
	animation-timing-function: steps(1, end);
}

/* 
       
       clip-path: inset(20% -5px  60%  0);
       clip-path: inset(50% -5px  30%  0);
       clip-path: inset(80% -5px  5%  0);
       clip-path: inset(0 -5px  80%  0);
       
       
        */
@keyframes san {
	0% {
		clip-path: inset(20% -5px 60% 0);
		transform: translate(-6px, 5px);
		visibility: visible;
	}

	10% {
		clip-path: inset(50% -5px 30% 0);
		transform: translate(6px, -5px);
	}

	20% {
		clip-path: inset(20% -5px 60% 0);
		transform: translate(5px, 0px);

	}

	30% {
		clip-path: inset(80% -5px 5% 0);
		transform: translate(-8px, 5px);
	}

	40% {
		clip-path: inset(0 -5px 80% 0);
		transform: translate(-4px, -3px);

	}

	50% {
		clip-path: inset(50% -5px 30% 0);
		transform: translate(-6px, -5px);
	}

	60% {
		clip-path: inset(80% -5px 5% 0);
		transform: translate(-7px, 5px);

	}

	70% {
		clip-path: inset(0 -5px 80% 0);
		transform: translate(3px, 6px);
	}

	80% {
		clip-path: inset(50% -5px 30% 0);
		transform: translate(5px, 5px);

	}

	90% {
		clip-path: inset(20% -5px 60% 0);
		transform: translate(6px, -5px);

	}

	100% {
		clip-path: inset(0 -5px 80% 0);
		transform: translate(1px, 5px);

	}
}

/*btn-12 绘制边框-流光*/
.btn-12 {
	position: relative;
	width: 300px;
	height: 95px;
	color: rgb(18, 190, 243);
	letter-spacing: 12px;
	font-size: 35px;
	line-height: 100px;
	text-align: center;
	text-transform: uppercase;
	user-select: none;
	text-decoration: none;
	overflow: hidden;
	/* box-shadow: inset 0 0 10px rgb(14, 20, 105), */
	0 0 5px rgb(9, 208, 235);
	transition: all 0.5s;

}

.btn-12:hover {
	text-shadow: 0 0 5px rgb(18, 190, 243),
		0 0 8px rgb(18, 190, 243),
		0 0 10px rgb(18, 190, 243);

	/* box-shadow: inset 0 0 10px rgb(14, 20, 105),
            0 0 5px rgb(9, 208, 235),
            0 0 10px rgb(9, 208, 235); */
}

.btn-12 span {
	position: absolute;
}

.btn-12 span:nth-child(1) {
	top: 0;
	left: 0;
	width: 100%;
	height: 2px;
	background-image: linear-gradient(to right, transparent, rgb(0, 153, 255));
	animation: move1 2s linear infinite;
}

@keyframes move1 {
	0% {
		transform: translateX(-100%);
	}

	100% {
		transform: translateX(100%);
	}
}

.btn-12 span:nth-child(2) {
	top: 0;
	right: 0;
	width: 2px;
	height: 100%;
	transform: translateY(-100%);
	background-image: linear-gradient(to bottom, transparent, rgb(0, 153, 255));
	animation: move2 2s linear infinite;
	animation-delay: 1s;
}

@keyframes move2 {

	100% {
		transform: translateY(100%);
	}
}

.btn-12 span:nth-child(3) {
	left: 0;
	bottom: 0;
	width: 100%;
	height: 2px;
	background-image: linear-gradient(to left, transparent, rgb(0, 153, 255));
	animation: move3 2s linear infinite;
}

@keyframes move3 {
	0% {
		transform: translateX(100%);
	}

	100% {
		transform: translateX(-100%);
	}
}

.btn-12 span:nth-child(4) {
	top: 0;
	left: 0;
	width: 2px;
	height: 100%;
	transform: translateY(100%);
	background-image: linear-gradient(to top, transparent, rgb(0, 153, 255));
	animation: move4 2s linear infinite;
	animation-delay: 1s;
}

@keyframes move4 {
	100% {
		transform: translateY(-100%);
	}
}