body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    background-color: #f8f9fa;
}

header {
    background-color: #2c3e50;
    color: #ffffff;
    padding: 20px;
    text-align: center;
}

h1 {
    margin: 0;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

section {
    margin-bottom: 40px;
}

h2 {
    color: #2c3e50;
    font-size: 24px;
    margin-top: 0;
}

p {
    font-size: 18px;
    line-height: 1.5;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

li {
    font-size: 18px;
    line-height: 1.5;
    margin-bottom: 10px;
}

table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    background-color: #ffffff;
    cursor: pointer;
}

table, th, td {
    border: 1px solid #dddddd;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #e9ecef;
    font-weight: bold;
    cursor: pointer;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

a {
    color: #1a0dab;
    text-decoration:none;
}

a:hover {
text-decoration: underline;
}

#nameHeader, #typeHeader, #sizeHeader, #modifiedHeader {
cursor: pointer;
}

.asc::after {
content: '\25b2';
}

.desc::after {
content: '\25bc';
}

#nameHeader:hover::after, #typeHeader:hover::after, #sizeHeader:hover::after, #modifiedHeader:hover::after {
opacity: 0.7;
}

#nameHeader.asc::after, #typeHeader.asc::after, #sizeHeader.asc::after, #modifiedHeader.asc::after {
content: '\25b2';
}

#nameHeader.desc::after, #typeHeader.desc::after, #sizeHeader.desc::after, #modifiedHeader.desc::after {
content: '\25bc';
}

@media screen and (max-width: 600px) {
table {
font-size: 12px;
}
}

@media screen and (max-width: 400px) {
table {
font-size: 10px;
}
}