.video-box{ position: relative; width: 100%; height: 0; padding-bottom: 56.25%;}.video-box iframe{ position: absolute; top: 0; left: 0; width: 100%; height: 100%;}@media screen and (max-width:800px){ .video-box{ width:100%; }}Nothin Can Hide From ItA delicate and compact UV flashlight for inspection and detection.Useful For Pet OwnersE19UV can detect pet urine sphagnum and bacteria that you can't see with naked eyes.Lightweight & CompactE19UV weighs only 44g (with battery) and has a dimension of 133mm x 14.8mm, it is easy to carry around.Detect the hidden DirtIn the time of Covid-19, household hygiene is more important than ever, E19UV can help you to do a better job!Useful For Pet OwnersE19UV can detect pet urine sphagnum and bacteria that you can't see with naked eyes.Say No to Counterfeit or FraudsE19UV features a maximum of 850mW output, its 365nm UV light LED can easily detect counterfeit money or fake jade.