body {
    background-image: url("../images/fondo_numerico.jpg");
    background-repeat: no-repeat;
    background-size: 250vh;
}
@font-face {
    font-family: casiofont;
    src: url('../fonts/BankGothicMdBT.ttf')
}
@font-face {
    font-family: numeros;
    src: url('../fonts/Calculator.ttf')
}
.principal {
    width: 450px;
    height: 555px;
    margin: 0 auto;
    margin-top: 3%;
    background-color: #25221b;
    border: 2px solid black;
    border-radius: 13em/1em;
    font-family: arial;
    font-size: 12px;
}
.marca {
    margin: 10px 0px 5px 10px;
    font-family: casiofont;
    font-size: 25px;
    color: white;
    font-weight: bold;
    color: #CFB53B;
}
.modelo {
    font-size: 12px;
    font-family: arial;
}
.foto {
    width: 150px;
    height: 30px;
    float: right;
    margin-right: 95px;
    margin-top: -7px;
    border: 2px solid #1e1b16;
    border-radius: 5px;
}
.pantalla01 {
    width: 440px;
    height: 80px;
    margin: 0 auto;
    padding-top: 20px;
    background-color: #3e3b32;
    border-radius: 13em/1em;
}
.pantalla02 {
    width: 370px;
    height: 60px;
    margin: 0 auto;
    background-color: #8a9597;
}
.pantalla {
    margin: 0px;
    padding: 1px 10px 1px 10px;
    font-family: numeros;
    font-size: 50px;
    text-align: right;
}
.teclat {
    width: 420px;
    height: 375px;
    margin: 0 auto;
    margin-top: 20px;
    padding-left: 1px;
    border-radius: 13em/1em;
    border: 3px solid #3e3b32;
}
.teclabase {
    width: 60px;
    height: 55px;
    margin: 10px 10px 10px 15px;
    color: white;
    background-color: black;
    border: 2px solid #3e3b32;
    border-radius: 5px;
    font-size: 20px;
    cursor: pointer;
}
.teclatip02 {
    background-color: #6f0000;
    border: 2px solid black;
}
.teclatip03 {
    background-color: #3e3b32;
    border: 2px solid black;
}
.teclatip04 {
    height: 130px;
    margin-right: 22px;
    margin-top: 10px;
    float: right;
}
.teclatip05 {
    margin-left: 0px;
    margin-right: -5px;
}
.memoriano {
    color: white;
    float: right;
    padding: 20px;
    display: none;
}
.memoriasi {
    color: white;
    padding: 20px;
    display: inline;
}