body {
	background:#000;
}
.bg {
	width:600px;
	height:328px;
	background:url('http://www.jq22.com/img/cs/500x500-5.png') no-repeat;
	background-size:cover;
	margin:200px auto;
	display:flex;
	cursor:pointer;
}
.pattice {
	display:block;
	width:75%;
	height:75%;
	margin:auto;
	cursor:pointer;
	text-align:center;
	position:relative;
	visibility:hidden;
}
.bg:hover div.pattice {
	visibility:visible;
}
.pattice:before {
	content:'';
	position:absolute;
	width:100%;
	height:0;
	left:0;
	top:50%;
	border-style:solid;
	border-color:white;
	border-width:0 4px;
	transition:all .3s;
	box-sizing:border-box;
}
.pattice:after {
	content:'';
	position:absolute;
	width:0;
	height:100%;
	top:0;
	left:50%;
	border-style:solid;
	border-color:white;
	border-width:4px 0;
	transition:all .3s;
	box-sizing:border-box;
}
.bg:hover .pattice:before {
	height:100%;
	top:0;
}
.bg:hover .pattice:after {
	width:100%;
	left:0;
}
.pattice p {
	font-size:20px;
	color:#fff;
	font-weight:bold;
	position:relative;
	visibility:hidden;
}
.bg:hover p {
	visibility:visible;
	background-image:-webkit-linear-gradient(left,blue,red 25%,blue 50%,red 75%,blue 100%);
	color:transparent;
	-webkit-text-fill-color:transparent;
	-webkit-background-clip:text;
	-webkit-background-size:200% 100%;
	background-size:200% 100%;
}
.bg:hover p.title {
	animation:title .4s forwards,test 4s infinite linear;
}
.bg:hover p.subtitle {
	animation:subtitle .4s forwards,test 4s infinite linear;
}
@keyframes title {
	from {
	top:100px
}
to {
	top:70px
}
}@-webkit-keyframes title {
	from {
	top:100px
}
to {
	top:70px
}
}@keyframes subtitle {
	from {
	top:110px
}
to {
	top:80px
}
}@-webkit-keyframes subtitle {
	from {
	top:110px
}
to {
	top:80px
}
}@keyframes test {
	0% {
	background-position:0 0;
}
100% {
	background-position:-100% 0;
}
}