.message-box{

	position: fixed;

	top: 0;

	right: 0;

	bottom: 0;

	left: 0;

	background-color: rgba(0, 0, 0, 0.3);

	visibility: hidden;

}

.message-box, .message-box-main, .btn{

	transition: all 0.5s;

	-ms-transition: all 0.5s;

}

.message-box.show{

	visibility:visible;

}

.message-box.show .message-box-main{

	top: 25%;

	opacity: 1;

}

.message-box-main{

	width: 500px;

	background-color: #fff;

	position: absolute;

	top: 15%;

	left: 50%;

	margin-left: -250px;

	border-radius: 3px;

	overflow: hidden;

	opacity: 0;

}