25 Pro CSS Tips you need to know in 2024

K

Kanak Kholwal

On 9/24/2023

25 Pro CSS Tips you need to know in 2024

In the ever-evolving world of web development, ensuring consistent and cross-browser styling can be a challenging task. Elements often inherit default styles from browsers, leading to variations in how your website looks on different platforms. This is where CSS resets come to the rescue.

Use a CSS Reset

CSS resets help enforce style consistency across different browsers with a clean slate for styling elements. One common way to perform a CSS reset is by using a CSS reset library like Normalize or other similar tools. These libraries systematically target various HTML elements and set their styles to zero. Here's an example of the traditional approach:

*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

This code snippet targets all elements, pseudo-elements, and pseudo-classes and ensures that they have no margins or padding by default. It also sets the box-sizing property to border-box, which simplifies layout management with the CSS box model.

The Inherit Box-Sizing Trick

An interesting variation of the CSS reset involves inheriting the box-sizing property from the html element. This approach can be particularly useful when working with plugins or components that rely on different box-sizing behaviors:

html {
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

By inheriting box-sizing from html, you make it easier to change the box-sizing property in specific components without affecting the entire document.

Using unset for Efficient Property Reset

When you need to reset an element's properties, you might be tempted to reset each property individually. However, there's a more efficient way to do this using the all shorthand:

button {
  all: unset;
}

By setting all to unset, you reset all properties of an element to their initial values. This approach simplifies your CSS and enhances maintainability. Just keep in mind that all and unset may not be supported in older browsers like IE11.

Enhancing Navigation with :not()

CSS can be expressive and human-readable. Instead of adding and removing borders for navigation elements, you can use the :not() pseudo-class to apply styles selectively:

.nav li:not(:last-child) {
  border-right: 1px solid #666;
}

This CSS rule targets all list items (li) within a navigation bar that are not the last child, applying the right border to them. This approach makes your CSS more intuitive and easier to understand.

Checking Font Availability

Font choices are crucial for web design, but they can impact performance if not handled correctly. You can check if a font is installed locally before fetching it remotely. This optimization not only improves loading times but also ensures a smoother user experience:

@font-face {
  font-family: "Dank Mono";
  src:
    /* Full name */
    local("Dank Mono"),
    /* Postscript name */
    local("Dank-Mono"),
    /* Otherwise, download it! */
    url("//...a.server/fonts/DankMono.woff");
}

code {
  font-family: "Dank Mono", system-ui-monospace;
}

By specifying local font sources first, you reduce the need for external font downloads, making your website faster and more efficient.

Simplify Line-Height with a Global Approach

Managing line-height for each paragraph or header element can be tedious. A more efficient approach is to set it globally:

body {
  line-height: 1.5;
}

By setting the line-height in the body element, you allow text elements to inherit this value. This not only simplifies your CSS but also ensures a consistent reading experience across your website.

Improving Focus Styles for Form Elements

Enhancing the focus styles of form elements is essential for accessibility. Sighted keyboard users rely on focus indicators to navigate websites effectively. Here's how you can make form elements stand out and provide a consistent focus experience:

a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  box-shadow: none;
  outline: #000 dotted 2px;
  outline-offset: .05em;
}

By customizing the focus styles, you ensure that your website is more accessible and user-friendly.

Vertically Centering Elements with CSS Magic

Vertical centering has been a long-standing challenge in web design. Fortunately, CSS offers elegant solutions using flexbox and CSS Grid:

/* Using Flexbox */
html,
body {
  height: 100%;
  margin: 0;
}

body {
  align-items: center;
  display: flex;
}

/* Using CSS Grid */
body {
  display: grid;
  height: 100vh;
  margin: 0;
  place-items: center center;
}

These CSS techniques allow you to vertically center elements effortlessly, improving the layout and aesthetics of your web pages.

Creating Comma-Separated Lists

Make your lists look more like real, comma-separated lists with this nifty CSS trick:

ul > li:not(:last-child)::after {
  content: ",";
}

This rule adds a comma after each list item except the last one, enhancing the visual presentation of your lists.

Using SVG for Scalable Icons

Scalable Vector Graphics (SVG) are the go-to choice for icons on the web. They offer excellent resolution independence and broad browser support:

.logo {
  background: url("logo.svg");
}

By using SVGs, you ensure that your icons look sharp and consistent across various devices and screen resolutions.

The "Lobotomized Owl" Selector

Despite its peculiar name, the "lobotomized owl" selector is a powerful tool for CSS layout:

* + * {
  margin-top: 1.5em;
}

This selector adds top margins to elements that follow other elements in the document flow. It's a handy way to control spacing between elements without adding unnecessary classes or IDs.

CSS-Only Sliders with max-height

Creating CSS-only sliders can be achieved with the max-height property and some clever styling:

.slider {
  max-height: 200px;
  overflow-y: hidden;
  width: 300px;
}

.slider:hover {
  max-height: 600px;
  overflow-y: scroll;
}

By toggling the max-height property on hover, you can create interactive sliders without relying on JavaScript.

Equal-Width Table Cells

Tables can be challenging to style, but the table-layout: fixed property comes to the rescue:

.calendar {
  table-layout: fixed;
}
```This property ensures that table cells have equal widths, simplifying the layout of tabular data.

## Ditch Margin Hacks with Flexbox

Flexbox offers a cleaner solution to column gutters compared to nth-child hacks:

```css
.list {
  display: flex;
  justify-content: space-between;
}

.list .person {
  flex-basis: 23%;
}

By using flexbox, you can evenly space columns without resorting to complex CSS rules.

Enhancing Empty Links with Attribute Selectors

Make links with empty text values more visually appealing by displaying their href attributes:

a[href^="http"]:empty::before {
  content: attr(href);
}

This CSS trick ensures that even links with no visible text have meaningful content.

Styling "Default" Links

Give links without specific classes a distinct style to make them stand out:

a[href]:not([class]) {
  color: #008000;
  text-decoration: underline;
}

This rule targets links that don't have a class attribute, allowing you to style default links differently.

Creating Intrinsic Ratio Boxes

Maintain aspect ratios for elements by using top or bottom padding:

 .container {
  height: 0;
  padding-bottom: 20%;
  position: relative;
}

.container div {
  border: 2px dashed #ddd;
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}

This technique ensures that the child div maintains its aspect ratio regardless of the viewport size.

Styling Broken Images

Enhance the appearance of broken images by adding a touch of CSS:

 img {
  display: block;
  font-family: sans-serif;
  font-weight: 300;
  height: auto;
  line-height: 2;
  position: relative;
  text-align: center;
  width: 100%;
}

img::before {
  content: "We're sorry, the image below is broken :(";
  display: block;
  margin-bottom: 10px;
}

img::after {
  content: "(url: " attr(src) ")";
  display: block;
  font-size: 12px;
}

This CSS snippet provides a user-friendly experience when images fail to load.

Using rem and em for Sizing

Improve the maintainability of your CSS by using rem for global sizing and em for local sizing:

 h2 {
  font-size: 2em;
}

p {
  font-size: 1em;
}

article {
  font-size: 1.25rem;
}

aside .module {
  font-size: .9rem;
}

This approach compartmentalizes styles, making your CSS more organized and adaptable.

Hide Autoplay Videos That Aren't Muted

Prevent autoplaying videos from disturbing users by hiding them if they're not muted:

 video[autoplay]:not([muted]) {
  display: none;
}

This CSS rule ensures that videos with autoplay enabled but no mute attribute are hidden, providing a quieter browsing experience.

Using :root for Flexible Type

Make your typography responsive by using the :root element to set font sizes based on viewport dimensions:

 :root {
  font-size: calc(1vw + 1vh + .5vmin);
}

body {
  font: 1rem/1.6 sans-serif;
}

This approach allows your typography to adapt seamlessly to different screen sizes.

Inheriting Fonts for Better Mobile Experience

Improve the consistency of font styles on form elements for a better mobile experience by setting fonts to inherit:

 input,
button,
select,
textarea {
  font: inherit;
}

This ensures that form elements inherit the typographical styles, reducing inconsistencies across browsers and platforms.

Controlling Mouse Events with Pointer Events

Customize how the mouse interacts with elements using pointer events:

 button:disabled {
  opacity: .5;
  pointer-events: none;
}

This rule makes disabled buttons less interactive, enhancing the user experience.

Hiding Line Breaks Used for Spacing

Prevent excessive line breaks from causing layout issues by hiding consecutive line breaks:

 br + br {
  display: none;
}

This CSS rule ensures that only a single line break is applied when consecutive line breaks occur.

Hiding Empty HTML Elements

Use the :empty pseudo-class to hide empty HTML elements, preventing them from creating unwanted space:

:empty {
  display: none;
}

This approach is particularly useful for elements that might receive content dynamically, ensuring a clean layout.

By implementing these CSS tips and tricks, you can significantly enhance your web development skills and create more polished and consistent websites. Remember that CSS is a powerful tool, and mastering it can lead to improved user experiences and efficient web design. Happy coding!

Conclusion

In conclusion, CSS resets are essential for achieving consistent and cross-browser styling. They provide a clean slate for styling elements, ensuring a uniform look across different browsers. Additionally, CSS offers various techniques to enhance styling and layout, such as the use of :not() pseudo-classes, font availability checks, and creating intrinsic ratio boxes. These tricks can simplify your CSS code and improve the overall user experience on your website.

Frequently Asked Questions

1. What is a CSS reset?

A CSS reset is a set of CSS rules that neutralize default styles applied by different web browsers. It helps create a consistent starting point for styling web elements.

2. Why is font availability important in web design?

Font availability is crucial for performance and user experience. Checking if a font is installed locally before fetching it remotely can reduce loading times and ensure a smoother browsing experience.

3. How can I vertically center elements in CSS?

You can vertically center elements using CSS techniques like flexbox and CSS Grid. These methods simplify the process of centering elements both horizontally and vertically.

4. Why should I use SVG for icons?

SVG (Scalable Vector Graphics) is an ideal choice for icons because it scales well for all resolution types and is supported in all modern browsers. It ensures that your icons look sharp and consistent.

5. What is the "lobotomized owl" selector in CSS?

The "lobotomized owl" selector is a CSS technique that uses the universal selector (*) with the adjacent sibling selector (+) to provide spacing between elements in the document flow.

6. How can I create CSS-only sliders?

You can create CSS-only sliders by using the max-height property and the :hover pseudo-class to toggle the display of content.

7. What is the advantage of using rem and em for sizing in CSS?

Using rem for global sizing and em for local sizing in CSS makes your code more maintainable and flexible. It allows you to control typography and layout at different levels of your web design.

8. Why is it important to hide autoplay videos that aren't muted?

Hiding autoplay videos that aren't muted prevents users from being overwhelmed by sound when a page loads. It improves the overall user experience and ensures a quieter browsing environment.

9. How can I control mouse events with CSS?

You can use the pointer-events property in CSS to control how the mouse interacts with elements. For example, you can use it to make disabled buttons less interactive.

10. Why should I hide line breaks used for spacing in CSS?

Hiding consecutive line breaks in CSS helps prevent layout issues caused by excessive spacing. It ensures that only one line break is applied when multiple line breaks occur.

Remember that mastering these CSS techniques can help you become a more proficient web developer and create visually appealing and user-friendly websites.