问题
I'm trying to develop offline Google map with some markers. I have done it well. I'm using Offline Google maps api-3. Here my problem is showing infowindow(). When is use online map my infowindow() shown like this
, but when I use offline map the infowindow() showing like this
. in Online map, the marker indication corner is small, but in offline map it's bit larger than online map infowindow(). I want to use infowindow() similar like online map infowindow(). I would like to reduce the corner size of infowindow() in offline map like this 
. How can I solve this ? now I'm using infowindow.js which is inside mapfiles of offline map package. is I need to download any other version of infowindow.js or need to modify the same js. kindly help me .
来源：https://stackoverflow.com/questions/20085785/google-maps-offline-map-api-3-infowindow