Errors:
Duplicate ID “chrome_ext_white-a”.
Duplicate ID “chrome_ext_white-b”.
Duplicate ID “chrome_ext_white-c”.
Duplicate ID “chrome_ext_white-d”.
Duplicate ID “chrome_ext_white-e”.
Duplicate ID “chrome_ext_white-f”.
Duplicate ID “chrome_ext_white-g”.
Duplicate ID “platf-chrome-a”.
Duplicate ID “platf-chrome-b”.
Duplicate ID “platf-chrome-c”.
Duplicate ID “platf-chrome-d”.
Duplicate ID “platf-chrome-e”.
Duplicate ID “platf-chrome-f”.
Duplicate ID “platf-chrome-g”.
Duplicate ID “platf-firefox-a”.
Duplicate ID “platf-firefox-b”.
Duplicate ID “platf-firefox-c”.
Duplicate ID “platf-firefox-d”.
Duplicate ID “platf-firefox-e”.
Duplicate ID “platf-firefox-f”.
Duplicate ID “platf-firefox-g”.
Duplicate ID “platf-firefox-h”.
Duplicate ID “platf-firefox-i”.
Duplicate ID “platf-firefox-j”.
Duplicate ID “platf-firefox-k”.
Duplicate ID “platf-firefox-l”.
Duplicate ID “platf-firefox-m”.
Duplicate ID “platf-firefox-n”.
Duplicate ID “animation-btn-a”.
Duplicate ID “btn-timer-android-a”.
Duplicate ID “btn-timer-iphone-a”.
Duplicate ID “btn-timer-mac-a”.
Duplicate ID “btn-timer-a”.
Duplicate ID “connected-a”.
Duplicate ID “connecting-a”.
Duplicate ID “tap-c”.
Duplicate ID “tap-a”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate attribute “alt”.
Warnings:
The first occurrence of ID “chrome_ext_white-a” was here.
The first occurrence of ID “chrome_ext_white-b” was here.
The first occurrence of ID “chrome_ext_white-c” was here.
The first occurrence of ID “chrome_ext_white-d” was here.
The first occurrence of ID “chrome_ext_white-e” was here.
The first occurrence of ID “chrome_ext_white-f” was here.
The first occurrence of ID “chrome_ext_white-g” was here.
The first occurrence of ID “platf-chrome-a” was here.
The first occurrence of ID “platf-chrome-b” was here.
The first occurrence of ID “platf-chrome-c” was here.
The first occurrence of ID “platf-chrome-d” was here.
The first occurrence of ID “platf-chrome-e” was here.
The first occurrence of ID “platf-chrome-f” was here.
The first occurrence of ID “platf-chrome-g” was here.
The first occurrence of ID “platf-firefox-a” was here.
The first occurrence of ID “platf-firefox-b” was here.
The first occurrence of ID “platf-firefox-c” was here.
The first occurrence of ID “platf-firefox-d” was here.
The first occurrence of ID “platf-firefox-e” was here.
The first occurrence of ID “platf-firefox-f” was here.
The first occurrence of ID “platf-firefox-g” was here.
The first occurrence of ID “platf-firefox-h” was here.
The first occurrence of ID “platf-firefox-i” was here.
The first occurrence of ID “platf-firefox-j” was here.
The first occurrence of ID “platf-firefox-k” was here.
The first occurrence of ID “platf-firefox-l” was here.
The first occurrence of ID “platf-firefox-m” was here.
The first occurrence of ID “platf-firefox-n” was here.
The first occurrence of ID “animation-btn-a” was here.
The first occurrence of ID “btn-timer-android-a” was here.
The first occurrence of ID “btn-timer-iphone-a” was here.
The first occurrence of ID “btn-timer-mac-a” was here.
The first occurrence of ID “btn-timer-a” was here.
The first occurrence of ID “connected-a” was here.
The first occurrence of ID “connecting-a” was here.
The first occurrence of ID “tap-c” was here.
The first occurrence of ID “tap-a” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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