Q71. How do you optimize responsive images for faster loading in CSS?
To optimize responsive images for faster loading in CSS, you can use smaller file formats like JPEG and PNG, reduce the image size and resolution, and use lazy loading to...
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Q72. How does calc() work in CSS?
The **`calc()`** function allows you to perform dynamic mathematical calculations directly in CSS property values, mixing different units together: ```css /* Mixing fixed...
Q73. What is the overflow property in CSS used for?
The overflow property specifies what should happen if content overflows an element’s box. It's possible values are: auto, none, scroll, visible.
Q74. What is the difference between `visibility:hidden` and `display:none`?
`visibility:hidden` means the tag is not visible, but the space is allocated for it on the page. `display:none` means the tag will not appear at all and there will be no ...
Q75. Are quotes mandatory in URL’s?
In CSS `url()` functional notation, quotes (single `'` or double `"`) are **optional for standard alphanumeric URLs**, but are **mandatory in specific edge cases**: ```cs...
Q76. Explain what are web-safe fonts and fallback fonts.
Web-safe fonts are fonts that are commonly installed on most devices and web browsers. Fallback fonts are alternative fonts specified in case the primary font is not avai...
Q77. What is the purpose of CSS content property?
The **`content`** property is used exclusively in conjunction with the **`::before`** and **`::after`** pseudo-elements to generate decorative or supplementary visual con...
Q78. How can we create custom cursor in CSS?
To create a custom cursor in CSS, you can use the "cursor" property and set it to "url" with the path to the image file that you want to use as the cursor.
Q79. What is the "line-height" property in CSS?
The **`line-height`** property defines the height of an inline line box, determining the vertical distance between baselines of consecutive lines of text: ### Value Forma...
Q80. What is specificity in CSS?
Specificity in CSS is a way of determining which CSS rule applies to an element. It is based on the number of selectors and their types in a CSS rule. Specificity is calc...