html,body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    margin: 0px;
    padding: 0px;
    font-family: Arial, Sans-serif;
    overflow: clip;
}

nav {
    text-decoration: none;
    background: rgb(156, 156, 156);
    display: flex;
    padding: 10px 15px;

    
}

nav ul {
    font-size: 20px;
    display: flex;
    list-style: none;
    gap: 20px 60px;
    margin: auto;
    margin-right: 5px;
    flex-wrap: wrap;
}

#content{
    display: flex;
    background: rgb(181, 181, 183);
    height: 100%;
    padding: 10px;
    gap: 10px;
}

#lessons {
    /* display: none; */
    margin: 0;
    border: 3px solid black;
    text-align: center;
    border-radius: 8px;
    padding: 30px;
    padding-top: 10px;
}

#lesson-header {
    font-size: 20px;
    font-weight: bold;
}

#lessons a:not(#lesson-header) {
    display: block;
    padding: 5px;
    font-size: 18px;
    text-decoration: none;
    color: rgb(100, 72, 240);
}

#lessons a:not(#lesson-header):hover {
    color: #3e6cea;
}


#info {
    background: rgb(181, 181, 183);
    border: 3px solid black;
    width: calc(100% - 185px);
    border-radius: 8px;
    overflow: clip;
}

#info > div{
    background: rgb(181, 181, 183);
    text-align: center;
    font-size: 20px;
    padding: 15px;
    border-bottom: 3px solid black;
}

main{
    background: rgb(214, 214, 214);
    height: 100%;
    overflow-wrap: break-word;
}