feat: add set 2 of questions for Backgrounds and borders quiz (#60259)

curriculum/challenges/english/25-front-end-development/quiz-css-backgrounds-and-borders/66ed8fd7f45ce3ece4053eb0.md

@@ -485,3 +485,445 @@ body {
 }
 ```
 
+## --quiz--
+
+### --question--
+
+#### --text--
+
+What kind of values can the `line-height` property accept?
+
+#### --distractors--
+
+Only pixel values
+
+---
+
+Only keyword values like `inherit`
+
+---
+
+Only em units
+
+#### --answer--
+
+Numbers, percentages, and length units
+
+### --question--
+
+#### --text--
+
+Which of the following is not a valid value for `line-height`?
+
+#### --distractors--
+
+`normal`
+
+---
+
+`150%`
+
+---
+
+`2em`
+
+#### --answer--
+
+`bold`
+
+### --question--
+
+#### --text--
+
+What does `list-style-type` control?
+
+#### --distractors--
+
+The position of a list marker
+
+---
+
+The spacing of list items
+
+---
+
+The alignment of list items
+
+#### --answer--
+
+The marker symbol used in a list
+
+### --question--
+
+#### --text--
+
+Which value is not valid for `list-style-type`?
+
+#### --distractors--
+
+`circle`
+
+---
+
+`disc`
+
+---
+
+`square`
+
+#### --answer--
+
+`hexagon`
+
+### --question--
+
+#### --text--
+
+What are the two acceptable values for `list-style-position`?
+
+#### --distractors--
+
+`top` and `bottom`
+
+---
+
+`inline` and `block`
+
+---
+
+`left` and `right`
+
+#### --answer--
+
+`inside` and `outside`
+
+### --question--
+
+#### --text--
+
+Which CSS property adds spacing outside each list item to improve readability?
+
+#### --distractors--
+
+`padding`
+
+---
+
+`line-height`
+
+---
+
+`text-indent`
+
+#### --answer--
+
+`margin`
+
+### --question--
+
+#### --text--
+
+What does the `:link` pseudo-class target?
+
+#### --distractors--
+
+All hyperlinks
+
+---
+
+Hovered links
+
+---
+
+Already visited links
+
+#### --answer--
+
+Unvisited links
+
+### --question--
+
+#### --text--
+
+What pseudo-class styles a link when the user has already clicked on it?
+
+#### --distractors--
+
+`:hover`
+
+---
+
+`:link`
+
+---
+
+`:focus`
+
+#### --answer--
+
+`:visited`
+
+### --question--
+
+#### --text--
+
+Which pseudo-class styles an element when it gains input focus?
+
+#### --distractors--
+
+`:hover`
+
+---
+
+`:visited`
+
+---
+
+`:target`
+
+#### --answer--
+
+`:focus`
+
+### --question--
+
+#### --text--
+
+When does the `:active` pseudo-class apply?
+
+#### --distractors--
+
+When the link is first loaded
+
+---
+
+When the user is not interacting
+
+---
+
+When the browser finishes rendering
+
+#### --answer--
+
+When a user clicks or taps the element
+
+### --question--
+
+#### --text--
+
+Which pseudo-class is used for hover effects?
+
+#### --distractors--
+
+`:link`
+
+---
+
+`:click`
+
+---
+
+`:active`
+
+#### --answer--
+
+`:hover` 
+
+### --question--
+
+#### --text--
+
+What does `background-size: cover` do?
+
+#### --distractors--
+
+Repeats the image in all directions
+
+---
+
+Crops the image
+
+---
+
+Fixes the image in one position
+
+#### --answer--
+
+Scales the image to fill the element while preserving aspect ratio
+
+### --question--
+
+#### --text--
+
+Which value of `background-repeat` will repeat the background image both horizontally and vertically?
+
+#### --distractors--
+
+`no-repeat`
+
+---
+
+`repeat-x`
+
+---
+
+`space`
+
+#### --answer--
+
+`repeat`
+
+### --question--
+
+#### --text--
+
+Which property sets where the background image is placed?
+
+#### --distractors--
+
+`background-location`
+
+---
+
+`background-origin`
+
+---
+
+`background-place`
+
+#### --answer--
+
+`background-position`
+
+### --question--
+
+#### --text--
+
+What value of `background-attachment` keeps the image fixed when scrolling?
+
+#### --distractors--
+
+`scroll`
+
+---
+
+`static`
+
+---
+
+`sticky`
+
+#### --answer--
+
+`fixed`
+
+### --question--
+
+#### --text--
+
+Which of the following correctly sets a background image that doesn’t repeat and is centered?
+
+#### --distractors--
+
+`background: no-repeat-center img("img.png");`
+
+---
+
+`background: image url("img.png") center;`
+
+---
+
+`background-position: center no-repeat url("img.png");`
+
+#### --answer--
+
+`background: center no-repeat url("img.png");`
+
+### --question--
+
+#### --text--
+
+Which property is used to set the top, right, bottom, and left borders in a single declaration?
+
+#### --distractors--
+
+`border-style`
+
+---
+
+`border-radius`
+
+---
+
+`outline`
+
+#### --answer--
+
+`border`
+
+### --question--
+
+#### --text--
+
+What effect does setting `border-radius: 10px;` have on an element?
+
+#### --distractors--
+
+It changes the border's opacity
+
+---
+
+It creates a 10-pixel border
+
+---
+
+It adds a 10px shadow
+
+#### --answer--
+
+It rounds the corners of the element
+
+### --question--
+
+#### --text--
+
+Which of the following CSS rules correctly creates a linear gradient from red to yellow?
+
+#### --distractors--
+
+`background: gradient-linear(red to yellow);`
+
+---
+
+`background: linear(red, yellow);`
+
+---
+
+`background-color: gradient(red, yellow);`
+
+#### --answer--
+
+`background: linear-gradient(red, yellow);`
+
+### --question--
+
+#### --text--
+
+Which of the following CSS declarations correctly applies a radial gradient from white in the center to blue at the edges?
+
+#### --distractors--
+
+`background: linear-gradient(white to blue);`
+
+---
+
+`background: gradient-radial(white to blue);`
+
+---
+
+`background: radial-gradient(blue, white);`
+
+#### --answer--
+
+`background: radial-gradient(white, blue);`
+