Combining multiple selectors for one rule: a easy guide

Having trouble consolidating these selectors into one CSS rule. Attempting to adjust the width of specific form fields.

input#input_9_2,
input#input_9_3 {
  max-width: 500px;
}

Strange behavior occurs when trying to combine them, as the rule doesn't apply to either of the form fields. However, they work perfectly fine when kept separate as shown above.

Answer №1

When organizing CSS selectors in a style sheet, you can use commas to group multiple selectors together. For example, the following style affects both classes input#input_9_2 and input#input_9_3.

input#input_9_2,
input#input_9_3
{
  max-width: 500px;
}

The comma acts as an "and", meaning this selector applies to all input#input_9_2 elements as well as input#input_9_3 elements. Without the comma, the selector would target all input#input_9_3 elements that are children of input#input_9_2, resulting in a different selection behavior.

You can combine any type of selector with any other selector within a group.

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