Internet Browser Line Zoom Bug

https://a4jp.com/info.html

Seeing faint lines on website when you zoom in? Did your phone get a bad update? Is your phone, tablet, PC or software buggy? Test your internet browser here. Zoom in on these boxes below. If your phone doesn't have faint lines behind the divs when zooming congratulations your device is bug free.

Code for the first div:

<div style="background-color:#333;padding:10px; width:150px; margin:0 0 5px">
<div style="float:left;background-color:#FFF;padding:10px">1.1</div>
<div style="float:left;background-color:#FFF;padding:10px">2.2</div>
<div style="clear:both"></div>
</div>

1.1
2.2
lines
zoom in
to clear
line →
← line
line →
←line
hello

2019 * iPad 12.9 inch 3rd gen, iPhone XS Max, iPhone X, iPhone 8, iPhone 7, iPhone 7 plus, iPhone 6s, iPhone 6s plus...

2019-09-05th iPad OS 13.1 beta 2 3rd gen iPad Pro
2019-09-04th iPad OS 13.1 beta 1 3rd gen iPad Pro
2018-11-15th iOS 12.1iPhone Max
2018-06-27th iOS 11.4 (15F79)
2018-02-22nd iOS 11.2.6 (15D100)
2018-01-01st iOS 11.2.1 (15C153) iPhone 7 plus test
2017-12-25th iPhone 8 plus and X in Yodobashi
2017-01-01st iOS 10.2
2016-10-26th iOS 10.1
2016-09-20th iOS 10.0.1 (14A403)
2015-09-24th iOS 9.0 (13A344)
2015-09-10th: This bug is on iOS 9 and the new iPad Pro with Apple Pencil. I was told buying a new phone is the best option to fix the problem.
2015-02-26th: info.html given to Apple for checking

Apple Support 2018-11-15th to find out about problem and get iPhone XS Max fixed 3:22 pm to 7:05 pm

Applecare Case Number:
774645784 (2015-04-07th, 23rd, 28th, 2015-06-18th)

First Applecare Case Number:
826756618

iPhone7とiPhone 7 PlusとiPadsとNew Macbooksの線問題
①ブラウザを開いて。a4jp.com/info.html または★マークのページのほかのサイトを開いてください。
②100% ズームインすると変な線がなくなるです。
1~99%変な線が表示します。

Line border bug on iPhone7, iPhone 7 Plus, iPads and New Macbooks.
1. Open the a4jp.com/info.html page (or other pages listed on the page with the star ★ below) in Safari or other browsers on an iPhone/iPad etc.
2. Pinch zoom to 100% to see the lines disappear. When you are slightly zoomed out you will see fine lines.

iPad: Safari, Mercury, Chrome, Opera, iLunascape, Doliphin Browser, Apollo Browser, and Webcapture all have the same problem.

Click here for the gallery of images related to this bug and websites to check

Here is a link to my Apple Support Communities post just after buying an iPad Air 2:
https://discussions.apple.com/message/27893999#27893999
アップルサポートのリンク

Video of the problem on an iPhone 6: https://www.youtube.com/watch?v=BfQFW9uid4M
問題のビデオ

Video of the line bug on an iPad Air 2: https://www.youtube.com/watch?v=W0CnTcaJaD4
問題のビデオ

 

Screenshot of the problem:
問題のJPG

If you need any other info or want to contact me send a message through my contact page.