drawing shapes on specific area

[meteerogl]

I am using imageOverlay and some bounds. Actually I have a specific area. I want to draw shapes, line etc. on just this area. After draw line or something I can carry out of the map. I don't want this. How can I do

   var map = L.map('leaflet-mp', {
        editable: true,
        dragging: false,
        zoomControl: false,
        boxZoom: false,
        doubleClickZoom: false,
        scrollWheelZoom: false,
        tab: false,
        touchZoom: false,
        minZoom: -1,
        maxZoom: -1,
        crs: L.CRS.Simple,
    }).setView([0, 0], 0);

    //Add Image
    var bounds = [[-360, -640], [360, 640]];
    L.imageOverlay('SS-0.jpg', bounds).addTo(map);
    map.fitBounds(bounds);