body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 1em 0;
}

header h1 {
    margin: 0;
}

header p {
    margin: 0.5em 0 0;
}

main {
    padding: 20px;
}

h2 {
    color: #333;
}

.intro, .definition, .ux-design, .importance, .ux-ui, .resources, .feedback {
    margin-bottom: 20px;
}

blockquote {
    background: #f9f9f9;
    border-left: 10px solid #ccc;
    margin: 1.5em 10px;
    padding: 0.5em 10px;
    quotes: "\201C""\201D""\2018""\2019";
}

blockquote:before {
    color: #ccc;
    content: open-quote;
    font-size: 4em;
    line-height: 0.1em;
    margin-right: 10px;
    vertical-align: -0.4em;
}

blockquote p {
    display: inline;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}

a {
    color: #4CAF50;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1em 0;
}

.rating span {
    display: inline-block;
    margin-right: 5px;
    padding: 5px;
    border: 1px solid #ccc;
    cursor: pointer;
}

.rating span:hover {
    background-color: #f0f0f0;
}