body {
    margin: 0;
    background-color: #000;
    color: lime;
    font-family: Helvetica, Arial, sans-serif;
}

canvas {
    display: block;
    position: absolute;
}

footer {
    position: absolute;
    bottom: 0;
    left: 0;
    box-sizing: border-box;
    width: 100vw;
    padding: 20px;
    text-align: right;
    font-size: 15px;
    color: lime;

}

footer a,
footer a:hover,
footer a:active {
    color: lime;
}

span {
    background-color: black;
}

br {
    font-size: 30px;
}

p {
    font-size: 16px;
    text-align: left;
    margin: 20px;
}

a {
    color: magenta
}

a:hover {
    color: black;
    background-color: magenta;
    cursor: pointer;
  }

main {
    top: 150px;
    width: 60%;
    position: relative;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: left;
    align-content: center;
    align-items: center;
    background-color: black;
    opacity: 0.85;
    margin-left: 17.5%;
    margin-right: 17.5%;

}


.boton {
    text-decoration: none;
    padding: 10px;
    font-weight: 600;
    font-size: 20px;
    color: lime;
    background-color: black;
    border-radius: 5px;
    border: 2px solid magenta;
}