html{
    min-height: 100%;
    background-color: #000000;
}
h1{
    max-width: 800px;
    margin: 0 auto; /* centers the container */
    padding: 20px;
    background-color: #000000;
    border: 2px solid #C97B63;
    border-radius: 10px;
    text-align: center;
    color: #fdfdfd;
}
body{
    min-height: 100vh;
    min-height: 100svh;
    margin: 0;
    background-color: #000000;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url('img/astrophysic.jpg');
    font-family:'Times New Roman', Times, serif;
}
p{
    max-width: 800px;
    margin: 0 auto; /* centers the container */
    padding: 20px;
    background-color: #000000;
    border: 2px solid #C97B63;
    border-radius: 10px;
    color: #fdfdfd;
    text-align: center; 
    font-size: 20px;
}
group{
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 20px;
}
.welcome{
    color: #fdfdfd;
}
h2{
    max-width: 800px;
    margin: 0 auto; /* centers the container */
    padding: 20px;
    background-color: #000000;
    border: 2px solid #C97B63;
    border-radius: 10px;
    color: #fdfdfd;
    text-align: center;
}
ul{
    text-align: center;
    font-size: 20px;
}
a{
    max-width: 800px;
    margin: 0 auto; /* centers the container */
    padding: 20px;
    background-color: #000000;
    border: 2px solid #C97B63;
    border-radius: 10px;
    color: #fdfdfd;
}
.gallery {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 20px;
    flex-wrap: wrap;
    max-width: 1300px;
    margin: 20px auto;
}

img{
    max-width: 100%;
    margin: 0;
    padding: 20px;
    background-color: #000000;
    border: 2px solid #C97B63;
    border-radius: 10px;
    display: block;
}