CSS: Select elements that contain another selector

There are cases when you need to select DOM elements without jQuery, such as:

• when jQuery is not available
• when your code is is extremely performance-sensitive
• when you want to operate on an entire HTML document (which is hard to represent ...

Spreewald 1.3.0 comes with these steps:

Then I should see an element ".panel"
Then I should not see an element ".sidebar"
Then I should see an element ".twitter-timeline"

We recommend to [define a selector_for method](https://githu...

Use option:checked to find the currently selected option:

select.querySelector('option:checked')

Yes, :checked, not :selected.

This is the same as finding an option with the { selected: true } property in JavaScript:

sele...

This note describes a Cucumber step definition that lets you test whether or not a CSS selector is present on the site:

Then I should see an element "#sign_in"
But I should not see an element "#sign_out"

Here is the step definition for C...

Using querySelector or querySelectorAll in JavaScript, you can easily find descendants of a node that match a given selector.

But what if you want to find only children (i.e. direct descendants) of an element?
Easy: use :scope. It referen...

There is no CSS selector for matching elements that contains a given string ¹. Luckily, Capybara offers the :text option to go along with your selector:

page.find('div', text: 'Expected content')

You can also pass a regular expre...

Spreewald comes with a selector_for helper that matches an English term like the user's profile into a CSS selector. This is useful for steps that refer to a particular section of the page, like the fol...

When you are using the #selector_for helper in Cucumber steps, as e.g. Spreewald does, the following snippet will save you typing. It recognizes a prose BEM-style selector and maps it to the corresponding...

tl;dr

The :where() pseudo selector - zero specificity - matches against a comma-separated list of selectors.

Example

Compound selectors like ...

.datepicker .prev, .datepicker .next, .datepicker .switch
  padding-botto...

tl;dr

The :is() pseudo selector - specificity of its most specific argument - matches against a comma-separated list of selectors.

Example

Compound selectors like ...

.datepicker .prev, .datepicker .next, .datepicker ....