body {
    font-family: monospace, tahoma, helvetica;
    background-color: black;
    background-image: url("../imagenes/fondo.png");
    background-size: auto;
    background-position: 0 0;
    background-repeat: repeat;
    color: lime;
    margin-left: 20px;
    margin-right: 20px;
}

.pixel
{
    display: none;
}

p {
    margin-top: 0px;
    margin-bottom: 15px;
}

.titulo {
    font-family: helvetica;
    font-size: 45px;
    text-align: center;
    color: magenta;
    text-shadow: 5px 5px 5px;
}

.texto {
    font-size: 20px;
    text-align: center;
    color: cyan;
}

.label {
    font-size: 25px;
}

input, textarea {
    background-color: black;
    color: lime;
    border: 2px solid darkgreen;
    font-size: 20px;
    resize: none;
    box-sizing: border-box;
}

input:focus {
    border: 2px solid magenta;
}

textarea:focus {
    border: 2px solid magenta;
}

#nick {
    font-size: 20px;
    width: 30%;
    height: 30px;
}

.casillanick {
    margin-left: 45px;
    outline: none;
}

.casillamensaje {
    width: 75%;
    height: 150px;
    overflow: auto;
    vertical-align: top;
    outline: none;
}

input {
    padding: 20px
}

textarea {
    padding: 10px;
    height: auto;
    line-height: 1.2;
}

::placeholder {
    color: darkgreen;
}

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

.boton {
    background-color: green;
    color: lime;
    border: 2px solid lime;
    border-radius: 12px;
    padding: 10px 20px;
    font-size: 20px;
    cursor: pointer;
    outline: none;
    transition: background-color 0.3s, border-color 0.3s;
}

.boton:hover {
    background-color: lime;
    color: green;
    border-color: lime;
}

.contador {
    font-size: 18px;
    text-align: center;
}

.letrapeque {
    font-size: 15px;
    text-align: center;
    margin-top: 5px;
}