How to Remove Margins from Last Elements in a Row Without :last-child?

Removing Margins from Last Elements in a Row

Removing margins from last elements in a row is a common challenge in web design. While :last-child can be used to remove margins from the final element in a list, this approach is not ideal when elements are dynamically sized or when there is an unknown number of elements per row.

Negative Margins

One solution is to use negative margins on the parent element. This approach creates the illusion that child elements fit within the parent element while preserving spacing between individual elements:

<code class="css">ul {
    margin-left: -5px;
    margin-right: -5px;
}

li {
    margin-left: 5px;
    margin-right: 5px;
}</code>

However, this technique may require additional styling, such as overflow-x: hidden, to prevent horizontal scrolling.

Media Queries

If the number of elements per row is predictable, media queries can be used to target last elements in a row using nth-child(). This option is more verbose than negative margins but allows for more granular styling control:

<code class="css">@media (min-width: 400px) and (max-width: 499px) {
    li:nth-child(even) {
        margin-right: 0;
        border-right: none;
    }
}

@media (min-width: 500px) and (max-width: 599px) {
    li:nth-child(3n+3) {
        margin-right: 0;
        border-right: none;
    }
}

@media (min-width: 600px) and (max-width: 799px) {
    li:nth-child(4n+4) {
        margin-right: 0;
        border-right: none;
    }
}</code>

The specific nth-child selector used will vary depending on the number of elements per row.

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