问题
According to W3Schools, I can skip attribute type for tag script in HTML5.
Evidence:
Differences Between HTML 4.01 and HTML5
The "type" attribute is required in HTML 4, but optional in HTML5.
Can I do exactly the same with style tag? I was unable to find similar note. It only says
type text/css Specifies the media type of the tag
but no info about omitting it. I don't care about IE, Edge or that sort of crap from Microsoft. I would like to write as less unnecessary code as possible. Ideally I would like to use just:
<style>.foo { color: red; }</style>
回答1:
According to the documentation:
type
This attribute defines the styling language as a MIME type (charset should not be specified). This attribute is optional and default to text/css if it's missing.
Also comparing html 4.01 and html 5:
html 4.01
type = content-type [CI]
This attribute specifies the style sheet language of the element's contents and overrides the default style sheet language. The style sheet language is specified as a content type (e.g., "text/css"). Authors must supply a value for this attribute; there is no default value for this attribute.
html 4.01 - The style element w3c
html 5
The type attribute gives the styling language. If the attribute is present, its value must be a valid MIME type that designates a styling language. The charset parameter must not be specified. The default value for the type attribute, which is used if the attribute is absent, is "text/css".
html 5 - The style element w3c
回答2:
Yes, you can, according to the specification:
The type attribute gives the styling language. If the attribute is present, its value must be a valid MIME type that designates a styling language. The charset parameter must not be specified. The default value for the type attribute, which is used if the attribute is absent, is "text/css". [RFC2318]
The default value already is text/css.
来源：https://stackoverflow.com/questions/33210842/can-i-skip-attribute-type-in-style-tag-in-html5