html{background: rgb(0, 146, 182);}

body {
font-family: Arial, sans-serif;
line-height: 1.6;
max-width: 800px;
margin: 0 auto;
padding: 20px;
background: rgb(255, 255, 255);
}
header {
margin-bottom: 30px;
}
h1 {
color: #333;
}
.author {
color: #666;
font-style: italic;
}
.date {
color: #666;
}
img {
max-width: 100%;
height: auto;
}
article {
margin-bottom: 30px;
}
footer {
border-top: 1px solid #ddd;
padding-top: 20px;
color: #666;
}