* {
    margin: 0;
    padding: 0;
}

body {
    background-color: #8acaed;
}

.contenedor {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: center;
    margin-bottom: 20px
}

.tarjeta {
    margin-top: 20px;
    text-align: center;
    padding: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 200px;
    width: 200px;
    background-color: white;
    border-radius: 10px;
    box-shadow: rgba(0, 0, 0, 0.50) 0px 25px 50px -12px;
    transition: 1s;
}

.tarjeta:hover {
    height: 210px;
    width: 210px;
    box-shadow: rgba(0, 0, 0, 1) 0px 25px 50px -12px;
    transition: 1s;

}
h1 {
    margin-top: 10px;
    color: white;
    text-align: center;
}

h2, h3 {
    margin-bottom: 10px;
}

.tiempo {
    width: 300px;
    height: 5px;
    text-align: right;
    margin: 0 auto;
    color: #8acaed;
}

a {
    display: none;
}