У вашего броузера проблема в совместимости с HTML5
Skip to 1:06 to go right to the greenhouse if you don't want to hear my intro. I built this mini greenhouse in my back yard over a raised garden bed. The project was pretty easy and was accomplished over several evenings after work. Almost all of the wood was purchased in the 75% off bin in the back of the lumber department, (I would search there for boards if your are not too particular about everything matching). The automatic basement vent can be purchased all over the internet or ordered into a big box store. This would probably make it easier to return the vent if it does not open and close with a temperature change like it should. The main reason that I made my greenhouse this way, with wood, was so I could build in a door that would swing open and make it easier for me to access the in inside for watering and harvest. The music in the background was written and recorded by myself. Thanks for watching.