* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: #f4f4f4;
}

.banner {
    background-color: orange;
    color: white;
    padding: 30px;
    text-align: center;
    position: relative;
}

.banner h1 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.btn {
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.primary-btn {
    background-color: purple;
    color: white;
}

.primary-btn:hover {
    background-color: darkviolet;
}

.secondary-btn {
    background-color: red;
    color: white;
    width: 100%;
    margin: 5px 0;
    text-align: left;
}

.secondary-btn:hover {
    background-color: darkred;
}

.main {
    display: flex;
    flex: 1;
    gap: 20px;
    padding: 20px;
}

.menu {
    background-color: red;
    color: white;
    width: 220px;
    padding: 20px;
    border-radius: 8px;
}

.menu h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.menu ul {
    list-style: none;
}

.menu li {
    margin: 10px 0;
}

.content {
    background-color: yellow;
    flex-grow: 1;
    padding: 20px;
    border-radius: 8px;
}

.content h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.content p {
    margin-bottom: 20px;
}

.footer {
    background-color: purple;
    color: white;
    padding: 20px;
    text-align: center;
    border-radius: 8px;
}

.footer h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}
#ust {
    width: 100%;
    height: 150px;
    background-color: #F90;
}

#menu {
    float: left;
    width: 30%;
    height: 400px;
    background-color: #F66;
}

#icerik {
    float: right;
    width: 70%;
    height: 400px;
    background-color: #FF5;
}

#alt {
	margin-top: 400px;
    width: 100%;
    height: 50px;
    background-color: #909;
}