head will select the element with the head tag
.blue selects all elements with the ‘bed’ class
#menu selects the elements with the ‘menu’ Id
div.row selects all elements with the div tag and the ‘row’ class
[aria-hidden="true"] selects all elements with the aria-hidden attribute with a value of “true”
This set explains the step-by-step solution to dynamically adjust a search input field's width in a navigation bar using CSS. The input field starts with a default width and expands to take up available space when the user focuses or enters text. The solution leverages flexbox and dynamic styles for a responsive and fluid user experience. Each Snipp in this Set addresses a key aspect of the implementation.
A CSS selector is the part of a CSS ruleset that actually selects the content you want to style.