css avoiding code duplication with nested classes

I created a custom CSS class named button.blue:

button.blue { background-color: blue; ... }
button.blue:active { background-color: darkblue; ... }
button.blue:hover { background-color: lightblue; ... }

To implement this class, I use the following code:

<button class="blue">hello</button>

This setup allows me to have a blue button with the text "hello" displayed on it. Now, I want to create blue buttons in various sizes without duplicating code. What is the most effective approach to achieve this?

I have attempted to search online for solutions, but my query seems too broad to yield any helpful results. I have explored concepts like CSS nested classes, grouping, and other techniques, but none have provided the desired outcome.

Answer №1

To account for various widths, you can create classes with different measurements like:

.button_small {width:100px;}
.button_medium {width:200px;}
.button_large {width:300px;}
.button_xlarge {width:400px;}

These classes can be applied to elements as needed. You can assign multiple classes to an element without any issue.

<button class="blue button_large">hello</button>

Answer №2

Consider creating specific size classes such as:

.large { width: 100px, height: 100px }
.small { width: 20px, height: 20px }

You can use these classes like this:

<button class="large blue">hello</button>

Answer №3

When it comes to button.blue, the properties are automatically inherited by button.blue:active and button.blue:hover. You only need to specify the properties that you want to modify, eliminating the repetition of code.

Answer №4

One cool feature of CSS is the ability to chain selectors together. For example:

button.blue.small { height: 20px; }

This rule will only apply to buttons that have both a "blue" class and a "small" class.

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