body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
}

header {
    background: #333;
    color: #fff;
    padding-top: 10px;
    min-height: 70px;
    border-bottom: #fff 3px solid;
}
        
header h1 {
    text-align: center;
    margin: 0;
}

.content {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h2 {
    color: #333;
}

p {
    margin: 10px 0;
}

.feature {
    margin-bottom: 20px;
    padding: 10px;
    background: #f9f9f9;
    border-left: 5px solid #333;
}

.feature h3 {
    margin-top: 0;
    color: #555;
}