body {
	font-family: Arial, sans-serif;
	/* Permalink - use to edit and share this gradient: https://colorzilla.com/gradient-editor/#ffffff+0,ededed+100 */
	background: rgb(255,255,255); /* Old browsers */
	background: -moz-linear-gradient(top,  rgba(255,255,255,1) 0%, rgba(237,237,237,1) 100%); /* FF3.6-15 */
	background: -webkit-linear-gradient(top,  rgba(255,255,255,1) 0%,rgba(237,237,237,1) 100%); /* Chrome10-25,Safari5.1-6 */
	background: linear-gradient(to bottom,  rgba(255,255,255,1) 0%,rgba(237,237,237,1) 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#ededed',GradientType=0 ); /* IE6-9 */
	height: 100vh;
	background-attachment: fixed;
}

h1, h2 {
   text-align: center;
   margin-top: 50px;
}

.card-container {
   display: flex;
   justify-content: center;
   align-items: center;
   flex-wrap: wrap;
   margin-top: 50px;
}

.card {
   position: relative;
   width: 300px;
   height: 400px;
   margin: 20px;
   perspective: 1000px;
}

.card-front, .card-back {
   position: absolute;
   width: 100%;
   height: 100%;
   padding: 20px;
   box-sizing: border-box;
   backface-visibility: hidden;
   transition: transform 0.6s;
   border-radius: 10px;
   border: solid 1px #222;
   box-shadow: 3px 3px 10px -5px #000;
}

.card-front {
   background-color: #fff;
   transform: rotateY(0deg);
   background-color: #0077cc;
	color: #fff;
}

.card-back {
   background-color: #fff;
   transform: rotateY(180deg);
   text-align: center;
}

.card:hover .card-front {
   transform: rotateY(180deg);
}

.card:hover .card-back {
   transform: rotateY(0deg);
}

img {
   display: block;
   height: 120px;
   margin: 0 auto;
   border: solid 1px #888;
   box-shadow: 0 0 10px -5px #000;
}

h3 {
   margin-top: 20px;
   font-size: 20px;
}

p {
   margin-top: 10px;
   font-size: 16px;
   line-height: 1.5;
}

button {
   display: block;
   margin: 20px auto 0;
   padding: 10px 20px;
   font-size: 16px;
   color: #fff;
   background-color: #0077cc;
   border: none;
   border-radius: 4px;
   cursor: pointer;
   transition: background-color 0.3s;
}

button:hover {
   background-color: #005ea3;
}

button:active {
   background-color: #004c8c;
}