It's perfectly valid to add input filtering on top of type=email if you want to further restrict the input set. Maybe you hate people with gmail addresses or only want to allow email addresses at your local firm (both examples from before!). In that case, having a more restrictive pattern makes sense.
ОАЭ задумались об атаке на Иран20:55
，这一点在体育直播中也有详细论述
Американскому сенатору стало «страшнее, чем когда либо» после брифинга по Ирану02:37，详情可参考夫子
The star, who has died at the age of 48, spoke to the BBC in 2003 about his feelings on leaving his best-known role.。体育直播对此有专业解读