body {
    font-family: Arial, sans-serif;
    background-color: #000000;
    margin: 0;
    padding: 0;
}

header {
    background-color: #000000;
    color: white;
    padding: 20px;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}
nav ul li a {
    color: white; 
    font-weight: bold; 
    text-decoration: none; 
    font-size: 16px; 
    font-family: Arial, sans-serif; 
}

nav ul li a:hover {
    text-decoration: underline; 
}
main {
    display: flex;
    margin: 20px;
}

.contenido-principal {
    flex: 3;
    margin-right: 20px;
}
.sidebar h3,
.sidebar ul li a {
    color: white;
}
.noticia {
    background-color: rgb(255, 255, 255);
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
}

.fecha {
    color: gray;
    font-size: 0.9em;
}

.sidebar {
    flex: 1;
    background-color: #333333;
    padding: 15px;
    border-radius: 5px;
}


.sidebar p {
    color: white; 
    font-weight: bold; 
}


.sidebar ul {
    list-style-type: disc;
    color: white; 
}

.sidebar ul li {
    color: white; 
}

footer {
    background-color: #000000;
    color: white;
    text-align: center;
    padding: 10px;
    position: relative;
    bottom: 0;
    width: 100%;
}

.pythonimg, .javaimg, .githubimg{
    width: 300px;
    height: 300px;
    margin: 0 auto;
    display: block;
    border: 2px solid black;
    border-radius: 5px;

}