[class=a] {}
[class="b"] {}
[class="b"] {}
[class="b"] {}
[class="b"] {}
[class="b"] {}
[class="b"] {}
[class="b"] {}
[class=b] {}
[class='c'] {}
[class=c] {}
[class='c'] {}
[class~=d] {}
[class~="e"] {}
[class~='f'] {}

[id=a] {}
[id=foo] {}
[id="b"] {}
[id='c'] {}
[id~=d] {}
[id~="e"] {}
[id~='f'] {}

[xlink\:href="https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xlink:href#pattern"]
[xlink\:href="/#a"]
[xlink\:href="#b"]
[xlink\3A href="#b"]
[xlink\03A href="#b"]
[xlink\003A href="#b"]
[xlink\0003A href="#b"]
[xlink\00003A href="#b"]
[xlink\00003Ahref="#b"]

[class=foo i] {}
[class="foo" i] {}
[class="foo"i] {}
[class="foo" I] {}
[class=g s] {}
[class="g" s] {}
[class="g"s] {}
[class="g" S] {}
[class="bar" x] {}

[aria-describedby~='g'] {}
[aria-labelledby~='h'] {}
[for~='i'] {}
[form~='j'] {}
[headers~='k'] {}
[itemref~='k'] {}
[list~='l'] {}

[class^="baz"],
[class$="baz"],
[class*="baz"] {}

.a {}
[data-toggle="baz"] {}
[data-toggle="a"] {}