tuxman/client/css/editor.css

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;
}