CSS pseudo-classes - html

Question

I have a problem, maybe it's obvious, but I couldn't find any answers how to do this.
I have a structure like this on my website:
<div class="row-even">
<article class="featured-job">a</article>
</div>
<div class="row-odd">
<article class="featured-job">b</article>
</div>
<div class="row-even">
<article class="regular-job">a</article>
</div>
<div class="row-odd">
<article class="regular-job">b</article>
</div>
<div class="row-even">
<article class="regular-job">c</article>
</div>
This tiny thing is generated by PHP for listing some articles from two types, a Featured job, and a Regular job. I want to separate these two content types by adding a margin-top for the first one of the .regular-job articles. I tried using first-line, first-child, first-of-type, all from the first-* and even tried nth-child, but nothing worked for me.
(I know these separators working on the parent of the element I am using on.)
Is there any way it can be done?

Answer 1

The problem with first-child and regular-job is that the articles are not directly in the same parent because they are nested in row-even & row-odd. You either could wrap the regular-job rows in another div which gets the margin applied or add another class to the first row containing a regular-job. You could even add a class directly to the first regular-job.
I don't know how you PHP loop looks like, but maybe try to use a counter for that matter.
If needed I will gladly provide an HTMl/CSS example!

Answer 2

You would probably want to do someting like that:
div:first-child .regular-job {
margin-top: 20px;
}
You select the first parent element that has the child of .featured-job.
PS. Be careful where you are applying the margin, it won't work on inline elements or if you want to separate the parent elements then applying it to the article is not a good idea.

Answer 3

As Sven says, the problem is that you need the elements to be siblings for this selectors to work.
Set a class in the parent, matching the one of the child:
HTML
<div class="row-even featured-father">
<article class="featured-job">a</article>
</div>
<div class="row-odd featured-father">
<article class="featured-job">b</article>
</div>
<div class="row-even regular-father">
<article class="regular-job">a</article>
</div>
<div class="row-odd regular-father">
<article class="regular-job">b</article>
</div>
<div class="row-even regular-father">
<article class="regular-job">c</article>
</div>
Then, it is easy to set the CSS. for instance:
.featured-father + .regular-father article {
background-color: red;
}
fiddle

Answer 4

while iterating in the PHP, add another dummy class with index.
Then it will be a piece of cake to make your custom class:
<div class="row-even featured_1">
<article class="featured-job">a</article>
</div>
<div class="row-odd featured_2">
<article class="featured-job">b</article>
</div>
<div class="row-even regular_1">
<article class="regular-job">a</article>
</div>
<div class="row-odd regular_2">
<article class="regular-job">b</article>
</div>
<div class="row-even regular_3">
<article class="regular-job">c</article>
</div>
notice the two introduced classes: featured_X and regular_X.
then:
.regular_1{
margin-top:50px;
}