body {
    height: 100vh;
}

header {
    font-size: 20px;
    font-family: "Comic Sans MS";
    margin: auto;
    text-align: center;
    background-color: pink;
    width: 150px;
}

div {
    border: 2px solid #000000;
}

#main_content {
    display: flex;
    justify-content: center;
    gap: 10px;
    height: 75%;
}

.content_frame {
    padding: 5px;
}

#center_frame {
    display: block;
    width: 400px;
    overflow-y: scroll;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    min-width: 150px;
}

.side_frame {
    display: block;
    width: 200px;
}