' get the body tag
Private body As BANanoElement
body.Initialize("#body")
Dim varID As String = "myiframeid"
Dim mSrc As String = "https://b4x.com"
Dim mWidth As String = "100vw"
Dim mHeight As String = "100vh"
' append the iframe tag
body.Append($"<iframe id="${varID}" src="${mSrc}" width="${mWidth}" height="${mHeight}" frameborder="0"></iframe>"$)