It’s certainly valid to use single quotes (HTML 4.01, section 3.2.2). I haven’t noticed such a trend, but perhaps there’s some framework that powers web sites you’ve visited that happens to quote using single quotes.
More Related Contents:
- Are (non-void) self-closing tags valid in HTML5?
- Single vs Double quotes (‘ vs “)
- Does have to be in the of an HTML document?
- href syntax : is it okay to have space in file name
- Cross-reference (named anchor) in markdown
- Why does a stray end tag generate an empty paragraph?
- Space Before Closing Slash?
- Why are dashes preferred for CSS selectors / HTML attributes?
- style and script tags in HTML body… why not?
- How do I select an element that has a certain class?
- Is whitespace allowed within XML/HTML tags?
- Wget recognizes some part of my URL address as a syntax error
- How can I vertically align elements in a div?
- Why doesn’t the height of a container element increase if it contains floated elements?
- What is the default form HTTP method?
- Text in Border CSS HTML
- How to change the time format (12/24 hours) of an ?
- How can I scale an entire web page with CSS?
- Creating anchor tag inside anchor tag
- CSS margin adds space outside parent element [duplicate]
- What are the allowed tags inside a ?
- So what if custom HTML attributes aren’t valid XHTML?
- Flexbox alternative for IE9
- Embed YouTube video – Refused to display in a frame because it set ‘X-Frame-Options’ to ‘SAMEORIGIN’ [duplicate]
- Center Triangle at Bottom of Div
- Why can’t I use a heading tag inside a p tag and style it with CSS?
- HTML code for an apostrophe
- Is it possible to specify a starting number for an ordered list?
- Old Google Form redirect after submission
- Prevent ligatures in Safari (Mavericks/iOS7) via CSS