.fondo {
    background: url('../img/fondoNora.jpg') no-repeat;
    background-size: cover;
    font-family: 'Century Gothic', sans-serif;
}

.box {
    width: 350px;
    background: rgb(0, 0, 0, .4);
    margin: 0 auto;
    margin-top: 4%;
    padding: 20px;
    color: white;
    text-align: center;
    border-radius: 15px;
}

.box-img {
    border-radius: 50%;
}

.box h1 {
    font-size: 40px;
    letter-spacing: 4px;
    font-weight: 100;
    margin: 30px 0 20px;
}

.box h2 {
    font-size: 20px;
    letter-spacing: 3px;
    font-weight: 100;
    margin-bottom: 20px;
}

.box p {
    text-align: justify;
}

.box ul {
    list-style: none;
    margin-top: 20px;
}

.box ul li{
    display: inline-block;
    align-content: center;
}

.box ul li a {
    font-size: 45px;
    padding: 10px 5px;
    display: block;
    transition: all 0.5s ease-in-out;
}

.box ul li a:hover {
    transform: scale(1.1);
}

a{
    color: white;
    text-decoration:none;
}

.tarjetag {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.card {
    position: relative;
    width: 350px;
    height: 400px;
    margin: 20px;
}

.card .face {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    overflow: hidden;
    transition: .5s;
}

.card .front {
    transform: perspective(600px) rotateY(0deg);
    box-shadow: 0 5px 10px #000;
}

.card .front img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card .front h3 {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 20px;
    line-height: 20px;
    color: #fff;
    background: rgba(0, 0, 0, .4);
    text-align: center;
}

.card .back {
    transform: perspective(600px) rotateY(180deg);
    background: rgb(3, 35, 54);
    padding: 15px;
    color: #f3f3f3;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: center;
    box-shadow: 0 5px 10px #000;
}

.card .back .link {
    border-top: solid 1px #f3f3f3;
    height: 50px;
    line-height: 50px;
}

.card .back .link a {
    color: #f3f3f3;
}

.card .back h3 {
    font-size: 17px;
    margin-top: 20px;
    letter-spacing: 2px;
}

.card .back p {
    font-size: 13px;
    letter-spacing: 1px;
}

.card:hover .front {
    transform: perspective(600px) rotateY(180deg);
}

.card:hover .back {
    transform: perspective(600px) rotateY(360deg);
}

footer {
    text-align: center;
    margin-top: 50%;
    background-color: black;
    color: white;
    bottom:0;
    clear:both;
    width:100%;
    height:100px;
}

.letraFooter p {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
        font-size: 25px;
}

.letraFooter a {
    color: white;
    text-decoration:none;
}

.volver {
    display: block;
    width: 50px;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 700;
    background-color: rgb(47, 64, 117);
    border-radius: 10px;
    padding: 15px 30px;
    margin: 150px 130px;
    color: white;
    text-decoration: none;
    margin-bottom: -45%;
    margin-left: 45%;
}