body {
    margin: 0;
    padding: 0;
    background-image: url(Imagenes/fondo.jpg);
}

main {
    width: 70%;
    margin: 50px auto;
}

#cabecera {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 2px solid black;
}

#logo {
    height: 100px;
    width: 100px;
    border-radius: 50%;
}

.caja {
    border: 1px solid #fff;
    width: 323px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.caja h1 {
    text-shadow: 3px 8px 15px black;
    color: rgb(12, 131, 243);
    font-family: Arial, Helvetica, sans-serif;
}

#titulo {
    text-align: left;
    font-style: italic;
    font-family: Arial, Helvetica, sans-serif;
    text-decoration: underline;
    font-size: 25px;
    margin: 20px;
}

.contenido {
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    padding: 10px 5px;
    border: 3px solid #000000;
}

.definiciones {
    width: 350px;
    margin: 30px;
    border: 2px solid #ccc;
    border-radius: 10px;
    padding: 10px;
    background-color: #fff;
    text-align: center;
}

.contenido1 {
    flex: 1 1 auto;
    margin: 0px 5px;
    padding: 7px 7px 7px 7px;
    border: 2px solid #686767;
    background: #fdfcf3;
}

.text1 {
    font-size: 20px;
    color: #5c5c5c;
}

.imagen1 {
    margin: 15px 0px 0px 0px;
    left: 34%;
    position: relative;
    width: 120px;
    transform: translate(-25%, -5%)
}

.subtituloHtml {
    background: #d36437;
    color: #fff;
    padding: 10px 10px 10px 10px;
    font-size: 18px;
    text-align: center;
    font-weight: bold;
}

.subHtml {
    background: #d36437;
    color: #fff;
    padding: 12px 20px;
    font-size: 18px;
    font-weight: bold;

    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.subHtml h3 {
    margin: 0;
    font-size: 1em;
}

.subtituloCss {
    background: #359AF2;
    color: #fff;
    padding: 10px 20px 10px 20px;
    font-size: 18px;
    text-align: center;
    font-weight: bold;
}

.subCss {
    background: #359AF2;
    color: #fff;
    padding: 12px 20px;
    font-size: 18px;
    font-weight: bold;

    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.subCss h3 {
    margin: 0;
    font-size: 1em;
}

.subtituloJavascript {
    background: #33ED00;
    color: #fff;
    padding: 10px 20px 10px 20px;
    font-size: 18px;
    text-align: center;
    font-weight: bold;
}

.subJavascript {
    background: #33ED00;
    color: #fff;
    padding: 12px 20px;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.subJavascript h3 {
    margin: 0;
    font-size: 1em;
}


p {
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}

h3 {
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}

#pie {
    border-top: 2px solid black;
    padding: 20px;
}


#pie h3 {
    text-decoration: underline;
    padding-bottom: 8px; 
    margin-bottom: 15px;
    border-bottom: 1px solid #ccc;
    width: fit-content; 
}

.tex-box {
    background-color: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.imgCasa {
    background-image: url(Imagenes/casa2.png);
    width: 525px;
    height: 350px;
    box-shadow: 7px 8px 11px 3px #000;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.casas2{
    display: flex;
    justify-content: center;
    align-items: center; 
    height: 90%;
    padding: 20px;
}