body {
    margin: 0px;   
}
header{
    background: #494949;
    color: white;
    text-align: center;
    padding: 10px;
    
}
footer {
   
    justify-self: center;
    padding: 25px;
}

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

nav ul li {
    display: inline;
    margin-right: 40px;
}
header a{
    color: rgb(255, 255, 255);
}
a:hover{
    color: rgb(181, 181, 181);
}
input,select{
    display: block;
    padding: 10px;
    width: 250px;
    height: 50px;
    margin-bottom: 10px;
}
.submit{
    padding: 10px;
    border-radius: 10px;
    border: none;
}
main {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    background-color: #ffffff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
main h2 {
    color: #444;
    border-bottom: 2px solid #4caf50;
    padding-bottom: 5px;
    margin-bottom: 15px;
}
main p {
    margin-bottom: 15px;
    line-height: 1.8;
}
main ul, main ol {
    margin: 15px 0;
    padding-left: 20px;
}
main figure {
    text-align: center;
    margin: 20px 0;
}
main figure img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

main figure figcaption {
    margin-top: 10px;
    font-style: italic;
    color: #555;
}

main table {
    justify-self: center;
    width: 90%;
    border-collapse: collapse;
    margin: 20px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

main table caption {
    caption-side: top;
    font-weight: bold;
    margin-bottom: 10px;
}

main table th, main table td {
    padding: 10px;
    text-align: left;
    border: 1px solid #ddd;
}
main table tbody tr:nth-child(even) {
    background-color: #f2f2f2;
}
main details {
    margin: 20px 0;
}
main progress {
    display: block;
    margin-top: 10px;
    width: 100%;
}
main a {
    color: #4caf50;
    text-decoration: none;
}
main a:hover {
    text-decoration: underline;
}