.back
{
	width: 100%;
	height: 1080px;
	background-image: 
		url(image/Back.png);
	background-position:
		center;
	background-attachment:
		fixed;
}

.button
{
	display: block;
	position: relative;
	padding: 1em 1.5em;
	background-color: #deb887;
	box-shadow: 0 3px 0 0 #d2b48c;
	border-radius: 4px;
	margin:30px auto;
	font-weight: bold;
	font-size: 16px;
	max-width:500px;
	color: #fff;
	text-align: center;
	text-decoration: none;
    overflow: hidden;
	transition: 300ms;
	background-image:url(image/Back2.png);
	background-repeat:no-repeat;
	background-position:center;
	background-size:90%;
}

.button::before 
{
    position: absolute;
    content: '';
    display: inline-block;
    top: -180px;
    left: 0;
    width: 30px;
    height: 100%;
    background-color: #ffffe0;
    transition: 300ms;
    animation: shinyshiny 2.5s ease-in-out infinite;
}

.button:hover 
{
    text-decoration: none;
    color: #fff;
    box-shadow: none;
    -webkit-transform: translateY(3px);
}

@-webkit-keyframes shinyshiny 
{
    0% { -webkit-transform: scale(0) rotate(45deg); opacity: 0; }
    80% { -webkit-transform: scale(0) rotate(45deg); opacity: 0.5; }
    81% { -webkit-transform: scale(4) rotate(45deg); opacity: 1; }
    100% { -webkit-transform: scale(50) rotate(45deg); opacity: 0; }
}