body{
    font-size: 18px;
}
main{
    display: flex;
    column-count: 2;
}
nav{
    border-style: solid;
    border-width: 2px;
    width: 40%;
}
aside{
    border-style: solid;
    border-width: 2px;
    width: 60%;
    align-content: left;
}
#content{
    border-style: none;
}