.flex-container {
    display: flex;
    flex-wrap: wrap;
    
  }
  body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    text-align: center;
    padding: 1px;
}

h1 {
    font-size: 36px;
    color: #fff;
}

.header-image {
    max-width: 100px;
}
nav {
    background-color: #333;
    text-align: center;
}

.nav-tabs {
    list-style-type: none;
    padding: 0;
}

.nav-tabs li {
    display: inline;
    margin: 0 10px;
}

.nav-tabs a {
    color: #fff;
    text-decoration: none;
}

.category {
    display: flex;
}

.text-column {
    width: 70%;
    padding: 20px;
    border-right: 2px solid #ddd; 
}

.image-column {
    width: 30%;
    padding: 80px;
}

.image-column img {
    max-width: 100%;
    height: auto;
}