body, html {
    margin: 0;
    padding: 0;
    font-family: Tahoma, sans-serif;
    box-sizing: border-box;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

.logo-search {
    display: flex;
    align-items: center;
}

.logo {
    width: 80px;
    height: auto;
    margin-right: 20px;
}

.search-box {
    padding: 5px;
    border: 1px solid #0c4d6a;
    border-radius: 3px;
    width: 250px;
    color: #0c4d6a;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    position: relative;
}

nav ul li {
    margin-left: 20px;
    position: relative;
}

nav ul li a {
    color: #0c4d6a;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
}

nav ul li a:hover,
nav ul li .dropbtn:hover {
    background-color: #d9f3ff;
    border-radius: 3px;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 160px;
    box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.dropdown-content a {
    color: #0c4d6a;
    padding: 10px 15px;
    text-decoration: none;
    display: block;
}

.dropdown-content a:hover {
    background-color: #d9f3ff;
}

.dropdown:hover .dropdown-content {
    display: block;
}


h2 {
    color: #0c4d6a;
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
    height: calc(100vh - 60px);
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.main-frame-container {
    width: 100%;
    margin: 0 auto;
    height: 100%;
}