.btn:before
{ 
	content: '';
	position: absolute;
	top: 2px;
	left: 2px;
	bottom: 2px;
	width: 50%;
	background: rgba(255,255,255,0.05);
}

.btn span:nth-child(1)
{ 
	position: absolute;
	top: 0;
	left: 0;
	height: 2px;
	width: 100%;
	background: linear-gradient(to right, #0c002b, #FF4500);
	animation: animate1 2s linear infinite;
	}
	
@keyframes animate1
	{ 
		0%		
		{ 
		transform: translateX(-100%);
		}
		100%		
		{ 
		transform: translateX(100%);
		}
	}
	

.btn span:nth-child(2)
{ 
	position: absolute;
	top: 0;
	right: 0;
	height: 100%;
	width: 2px;
	background: linear-gradient(to bottom, #0c002b, #FF4500);
	animation: animate2 2s linear infinite;
	animation-delay: 1s;
	}
	
@keyframes animate2
	{ 
		0%		
		{ 
		transform: translateY(-100%);
		}
		100%		
		{ 
		transform: translateY(100%);
		}
	}
	
	
.btn span:nth-child(3)
{ 
	position: absolute;
	bottom: 0;
	left: 0;
	height: 2px;
	width: 100%;
	background: linear-gradient(to left, #0c002b, #FF4500);
	animation: animate3 2s linear infinite;
	}
	
@keyframes animate3
	{ 
		0%		
		{ 
		transform: translateX(100%);
		}
		100%		
		{ 
		transform: translateX(-100%);
		}
	}
	

	
.btn span:nth-child(4)
{ 
	position: absolute;
	top: 0;
	left: 0;
	height: 100%;
	width: 2px;
	background: linear-gradient(to top, #0c002b, #FF4500);
	animation: animate4 2s linear infinite;
	animation-delay: 1s;
	}
	
@keyframes animate4
	{ 
		0%		
		{ 
		transform: translateY(100%);
		}
		100%		
		{ 
		transform: translateY(-100%);
		}
	}