瀏覽器對Web標準的支持

Web Browser Standards Support Summary

這是由www.webdevout.net提供的一個測試，2007年3月提供，參考價值較高。

結論是，我們可以放心的使用HTML 4.01、和ECMAScript。使用CSS 2.1和DOM之前，應該檢查一下瀏覽器特別是IE6的手冊。

其它東西都靠不住。

Technology IE 6 IE 7 Firefox 2 Opera 9
HTML / XHTML
HTML 4.01 80% 81% 92% 86%
XHTML 1.0 changes 17% 17% 92% 92%
XHTML 1.1 changes N N 63% 58%
CSS 2.1
CSS 2.1 Units 96% 96% Y 97%
CSS 2.1 Importance I I Y Y
CSS 2.1 At-rules 21% 21% 43% Y
CSS 2.1 Basic selectors 23% 64% 86% 77%
CSS 2.1 Pseudo-classes 29% 36% 93% 93%
CSS 2.1 Pseudo-elements 25% 25% 63% 63%
CSS 2.1 Basic properties 55% 58% 97% 97%
CSS 2.1 Print properties 38% 38% 33% Y
CSS 2.1 Conformance 43% 43% Y 86%
CSS 3 changes
CSS 3 Units 75% 75% 80% 79%
CSS 3 At-rules N N N 26%
CSS 3 Basic selectors N 50% 63% 63%
CSS 3 Pseudo-classes N N 25% 20%
CSS 3 Pseudo-elements N N N N
CSS 3 Basic properties 14% 14% 18% 5%
CSS 3 Print properties N N N N
DOM
DOM Level 3 Core 31% 31% 62% 66%
DOM Level 2 Events 47% 47% 99% Y
DOM Level 2 HTML 89% 89% Y ≈100%
DOM Level 3 Load and Save N N N 71%
DOM Level 2 Style 31% 31% 87% 77%
DOM Level 2 Traversal and Range N N 75% Y
DOM Level 3 Validation N N N N
DOM Level 2 Views 38% 38% Y Y
ECMAScript
Language constructs 99% 99% Y Y
Objects ≈100% ≈100% Y Y
Total
HTML / XHTML 73% 73% 90% 85%
CSS 2.1 51% 56% 91% 94%
CSS 3 changes 10% 13% 24% 19%
DOM 50% 51% 79% 84%
ECMAScript 99% 99% Y Y