How should CSS selectors be named correctly? The process seems to be rather inconsistent in its functioning

In my attempt to style a buttonfield in a details view labeled ProductDetailsEditButton, I initially believed the correct selector name should be td .ProductDetailsEditButton. However, this did not yield the desired results. Surprisingly, when I used td.ProductDetailsEditButton (without the space), it worked as intended.

Is there a strict rule regarding the presence of a space between selectors, or does it vary depending on the circumstances? This inconsistency in naming conventions is confusing me, and I am eager to understand what I may be overlooking.

asp.netcss

Answer №1

Let's distinguish between these two:

td .ProductDetailsEditButton

is indicating "a child element with the class ProductDetailsEditButton inside a td element"

td.ProductDetailsEditButton

is specifying "a td element with the class ProductDetailsEditButton"

Answer №2

When a space is present, it indicates that the selector will target child elements within a <td> element with the class="ProductDetailsEditButton". For instance:

<td>
    <div class="ProductDetailsEditButton">Button</div>
</td>

Without a space, it will match 

<td class="ProductDetailsEditButton">
.

Answer №3

When selecting elements, it's important to determine whether the class is applied directly to the button or if it's on a parent container like a "td". If the class is specifically for the button, you can target it in your CSS using:

 input.ProductDetailsEditButton

For more general application across multiple elements, you would use:

 .ProductDetailsEditButton

Answer №4

Including a space in between td .ProductDetailsEditButton specifies the ProductDetailsEditButton that is a descendant of a td.

Excluding the space like this td.ProductDetailsEditButton specifies the td element with the class ProductDetailsEditButton.

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