Applying CSS to inherit styles

I have a group of divs with a similar style, but each one has different padding and margin settings. Here is an example:

<div class="mainStyle" id="cc">CC</div>
<div class="mainStyle" id="bb">BB</div>
<div class="mainStyle" id="aa">AA/div>

Here is the CSS for the main style:

.mainStyle {
    float: right;
    width: 60px;
    text-align : center;
    font: 95% Arial;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background : #69abd0;
}

And here are the specific styles for each ID:

#aa {
    margin: 0px 2px 0px 2px;
    padding: 2px 0 5px 0;
}

#bb {
    margin: 10px 2px 10px 2px;
    padding: 2px 0 5px 0;
}

#cc{
    margin: 10px 2px 10px 2px;
    padding: 20px 0 50px 0;
}

I am looking for a way to streamline this code as the only differences between each element's style are the padding and margins. How can I combine the class style with the individual element styles?

Your insight is much appreciated!

Answer №1

Your code will successfully achieve the desired outcome, but there is a syntax error to address. The final AA element is missing the left < tag. Additionally, remember that the order of CSS styles matters. Styles for the id's must come after .mainStyle and any other styles that could potentially override your margin or padding. To ensure your styles are applied correctly, consider using the !important modifier.

Answer №2

Your inquiry is a bit unclear to me. The method in which you combined an ID with a class is correct. Are you hoping to reutilize these IDs? One option is to convert them into classes and utilize them in HTML like so:

<div class="mainStyle aa">AA/div>

There does not appear to be any issue with your code.

Answer №3

It seems like there might be some confusion in regards to your question. While you "can" target html IDs in CSS using the class, such as .mainstyle#aa, it is considered unnecessary. There really isn't much that needs simplifying:

.mainStyle {
    float: right;
    width: 60px;
    margin: 10px 2px 10px 2px;
    padding: 2px 0 5px 0;
    text-align : center;
    font: 95% Arial;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background : #69abd0; }    
#aa { margin: 0px 2px 0px 2px; }
#cc { padding: 20px 0 50px 0; }

It's also recommended to structure your code like this:

<div class="main">
    <div id="cc">CC</div>
    <div id="bb">BB</div>
    <div id="aa">AA</div>
</div>

and

/* Use the child selector... */
.main > div { /* apply .mainStyle here */ }
#aa...

Answer №4

Just like this! The concept of cascading in cascading style sheets emphasizes avoiding redundancy by only specifying styles once and then overriding them later if necessary. Any CSS settings declared subsequently will take precedence over those defined earlier. It is also important to delve into the topic of specificity in relation to CSS.

CSS

.mainStyle {
    float: right;
    width: 60px;
    text-align : center;
    font: 95% Arial;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background : #69abd0;
    margin: 10px 2px 10px 2px;
    padding: 2px 0 5px 0;
}

#aa {
    margin: 0px 2px 0px 2px;
}

#cc{
    padding: 20px 0 50px 0;
}

Answer №5

It's okay to use that syntax, but you can definitely streamline it to avoid repetition. Remember, an id takes precedence over a class, so you can simply override styles from the class:

.mainStyle {
    float: right;
    width: 60px;
    text-align : center;
    font: 95% Arial;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background : #69abd0;
    margin: 10px 2px;
    padding: 2px 0 5px 0;
}

#aa {
    margin: 0 2px;
}

#bb {
}

#cc{
    padding: 20px 0 50px 0;
}

If you prefer not to use the class in your markup, you can utilize the , operator to apply multiple selectors to a style. Just remember, styles are applied in the order they're written, so later rules with the same specificity will take precedence over earlier ones:

#aa,#bb,#cc {
    float: right;
    width: 60px;
    text-align : center;
    font: 95% Arial;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background : #69abd0;
    margin: 10px 2px;
    padding: 2px 0 5px 0;
}

#aa {
    margin: 0 2px;
}

#bb {
}

#cc{
    padding: 20px 0 50px 0;
}

(I included the empty #bb rule just to demonstrate that it hasn't been left out. Since it's blank, it isn't necessary.)

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