How can I effectively merge HTML classes in CSS to simplify the design process?

I’m new to web development and I’ve got an HTML document with some classes. When designing, I encountered the following code snippet:

  <button class="roll"><i class="ion-ios-loop"></i><span>Roll dice</span></button>
 <button class="hold"><i class="ion-ios-download-outline"></i><span>Hold</span></button>

Here is my CSS for that HTML code:

.hold span{
    padding-left: 10px;
    transition: .2s;
}
.roll span{
    padding-left: 10px;
    transition: .2s;
}
.roll span:hover{
     padding-left: 20px;
}
.hold span:hover{
    padding-left: 20px;
}

However, when I tried to make it shorter like this, it didn’t work as expected:

.hold.roll span{
    padding-left: 10px;
    transition: .2s;
}

.hold.roll span:hover{
     padding-left: 20px;
}
and also like this:

.hold,.roll span{
    padding-left: 10px;
    transition: .2s;
}

.hold,.roll span:hover{
     padding-left: 20px;
}
Am I missing something in my CSS? Why aren't my other two codes working properly? Thanks.

Answer №1

Follow this format:

.hold span,.roll span{
 padding-left: 10px;
 transition: .2s;
}

.hold span:hover,.roll span:hover{
 padding-left: 20px;
}

Alternatively, you can use the following method:

button span{
 padding-left: 10px;
 transition: .2s;
}

button span:hover{
 padding-left: 20px;
}

Answer №2

It seems that the issue lies with your CSS selectors. Instead of using .hold.roll span or .hold,.roll span, you should use .hold span,.roll span

.hold span , .roll span{
    padding-left: 10px;
    transition: .2s;
}
.roll span:hover , .hold span:hover{
     padding-left: 20px;
}
<button class="roll"><i class="ion-ios-loop"></i><span>Roll dice</span></button>
 <button class="hold"><i class="ion-ios-download-outline"></i><span>Hold</span></button>

Answer №3

Make sure to include a unique rule for each individual span element, like this example:

.first span,.second span{
    margin-top: 15px;
    transition: .3s;
}

.first span:hover,.second span:hover{
     color: blue;
}

Answer №4

It is possible to assign multiple classes to an object. For example, if you have two classes defined in your CSS file:

.default-margin {margin:10px}
.highlight {background:#ff9900;}

<span class="default-margin highlight">Highlighted text</span>
<p class="default-margin>Regular paragraph</p>

Answer №5

When combining selectors, make sure each one is fully defined. Check out this helpful article on the topic: Mastering CSS Selector Combination.

Here's the code snippet you've been searching for:

.wrapper .box, .container .item{
    margin-top: 15px;
    transition: 0.3s;
}
.container .item:hover, .wrapper .box:hover{
     margin-top: 30px;
}

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