How many columns will there be, given this code? .container { width: 600px; Column-width: 200px; column-gap: 50px;}

You find this code in a stylesheet. What is it being used for? .cf::after { content: '';

What is the correct way to initialize an array of galaxies in JavaScript?

Which description correctly describes the initial values of flex items if the only thing you have done is apply display: flex to their parent?

Which line of code, if applied to all flex items in a flex container, would cause each flex item to take up an equal share of the total width of the container? For example, if there are four items, they would get 25% of each/

A video on your webpage does not display and the console shows an error about mixed content. What is happening?

You have created a box that has a height set with CSS. Which line of CSS would add scroll bars if the content is taller than the box, but leave no visible scroll bars if the content fits into the box?

_ moves an element completely out of the page's normal layout flow, like it is sitting on its own separate layer. From there, you can fix it in a position relative to the edges of the page's element (or its nearest positioned ancestor element)?

In normal flow, some elements display as block elements default and others inline. which choice contains only block-level by default elements?**

Which choice is not of invoking strict mode in JavaScript?

What does the CSS selector a[href$="org"] select?