canvas { 
    box-shadow: inset 0 0 1px red; 
}

#sidebar {
    background-color: #191919;
    position: absolute;
    display: flex;
    flex-direction: column;
    border: 1px solid #fff;
    padding: 1rem;
}

#mapgen, #mapload {
    display: flex;
    flex-direction: column;
}

#mapload {
    margin-top: 3rem;
}

#export {
    margin-top: 1rem;
}

#popup {
    background-color: #191919;
    position: absolute;
    flex-direction: column;
    padding: .5rem;
    border: 1px solid #fff;
}

#popup textarea {
    margin: .5rem 0;
    height: 5rem;
    background-color: transparent;
    color: white;
    border: 1px solid #fff;
}

#popup input {
    margin: 0;
}

#close {
    width: .3rem;
    height: .3rem;
    font-size: .6rem;
    line-height: 0;
}