img{
    max-width: 100%;
}
body {
   font-family: Arial, sans-serif;
   margin: 0;
   padding: 0;
}
 
header {
   background-color: #333;
   color: white;
   padding: 10px 0;
}
 
.navbar {
   list-style-type: none;
   margin: 0;
   padding: 0;
   display: flex;
   justify-content: center;
}
 
.navbar li {
   margin: 0 15px;
}
 
.navbar a {
   color: white;
   text-decoration: none;
   transition: color 0.3s;
}
 
.navbar a:hover {
   color: #ddd;
}
 
.container {
   padding: 20px;
   display: flex;
   flex-wrap: wrap;
}
 
.breadcrumbs {
   margin-bottom: 20px;
}
 
.main-article {
   flex: 3;
   padding-right: 20px;
}
 
.related-articles {
   margin-top: 30px;
}
 
.sidebar {
   flex: 1;
   background-color: #f4f4f4;
   padding: 20px;
   margin-left: 20px;
}
 
.tags {
   margin-top: 20px;
}
 
.tags span {
   background-color: #333;
   color: white;
   padding: 5px 10px;
   margin-right: 5px;
   border-radius: 5px;
}
 
footer {
   background-color: #333;
   color: white;
   text-align: center;
   padding: 10px 0;
   margin-top: 20px;
}
 
/* Responsive design */
@media (max-width: 768px) {
   .container {
       flex-direction: column;
   }
 
   .main-article,
   .sidebar {
       flex: none;
       width: 100%;
       padding-right: 0;
       margin-left: 0;
   }
 
   .sidebar {
       margin-top: 20px;
   }
}