I am not able to scan the multi-format barcode on the landscape mode of the mobile, I have included the following in the page head so the scanning page looks good on mobile. However, it is working fine in portrait mode.
<head>
<meta charset="UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<meta http-equiv="X-UA-Compatible" content="ie=edge"/>
<title>Barcode Scan</title>
</head>
<style>
.video {
width: 100%;
}
</style>