Folha de Estilo

Modal CSS3 - style.css

html, body{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	background: #FF3300;
	font-family: 'Ubuntu', sans-serif;
}	

.modal{
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 50%;
	height: auto;
	min-width: 300px;	
	z-index: 2;
	visibility: hidden;	
	display: flex;
	align-items: center;
	justify-content: center;
    	-webkit-perspective: 900px; 
    	-moz-perspective: 900px;
    	-ms-perspective: 900px;
    	perspective: 900px;
}

.modal-content{
	padding: 120px 10px;
	text-align: center;
	color: #000;
	background: rgb(236, 236, 236);
	border-radius: 10px;	
	border: 1px solid #909090;	
	box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.9);	
	transition: ease-in 0.3s;
	transform: rotateX(-60deg);
	-webkit-transform: rotateX(-60deg);
	-moz-transform: rotateX(-60deg);
	-ms-transform: rotateX(-60deg);	
}

.modal-open{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	border: transparent;
	background: #fff;
	font-size: 15px;
	font-weight: bold;
	padding: 20px 50px;
	border-radius: 5px;
}

.modal-open:active{
	outline: transparent;
}

.modal-close{
	padding: 8px 40px;
	border-radius: 8px;
	border: transparent;
	background: #212121;
	color: #fff;
	outline: transparent;	
}

.overlay {
	position: fixed;
	width: 100%;
	height: 100%;
	visibility: hidden;
	top: 0;
	left: 0;
	z-index: 1;
	opacity: 0;
	background: rgba(0, 0, 0, 0.5);
	transition: ease-in 0.4s;
}

.modal-show {
	opacity: 1;
	visibility: visible;	
}

.modal-animate{
	transition: ease-in 0.3s;
	transform: rotateX(0deg);
	-webkit-transform: rotateX(0deg);
	-moz-transform: rotateX(0deg);
	-ms-transform: rotateX(0deg);	
}