body {
    text-align: center;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-image: url(../img/Fondo.jpeg);
    background-size: cover;
    background-position: center;
}

header {
    padding: 5px;
    margin: 0;
}

img {
    max-width: 10%;
    height: auto;
    display: block;
    margin: 0 auto;
}

h1 {
    font-size: 30px;
    margin: 2px;
    font-weight: bold;
}

section {
    padding: 5px;
}

button {
    width: 300px;
    padding: 20px;
    font-size: 40px;
    margin: 10px;
    /* background-color: #05BE00; */
    color: #fff;
    border: 4px solid #394342; 
    border-radius: 10px;
    /* box-shadow: 0 0 0 2px black; */
}

.b1 {
    background-color: #979BEF;
}
.b2 {
    background-color: #94EB82;
}
.b3 {
    background-color: #F0B652;
}
.b4 {
    background-color: #79E3DE;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}
a {
    color:  white;
}