/* En başa ekle */
* {
    box-sizing: border-box;
}
html, body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Resimleri mobilde sınırlamak için */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

body {
    font-family: Tahoma, sans-serif;
    margin: 0;
    padding: 0;
}
header {
    background-color: #0077cc;
    color: white;
    padding: 20px;
    text-align: center;
}
nav a {
    color: white;
    margin: 10px;
    text-decoration: none;
}
.intro {
    background-color: #eeeeee;
    padding: 40px;
    text-align: center;
}
.products {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}
.product {
    text-align: center;
    margin-bottom: 20px;
}
footer {
    background-color: #444;
    color: white;
    text-align: center;
    padding: 15px;
}