Select the parent class within same class names - css

If i use "nth-of-type(1)" selector, its select all of them. How can i select only parent div ?
Thanks
<div class="parent_div">
<div class="parent_div"></div>
<div class="parent_div"></div>
<div class="parent_div"></div>
</div>


You should include directive parent container into your selector and use direct child selector >:
.container > .parent_div:nth-of-type(1) {
border: 1px red solid;
}
<div class="container">
<div class="parent_div">
<div class="parent_div"></div>
<div class="parent_div"></div>
<div class="parent_div"></div>
</div>
</div>

Related

targeting a bootstrap row with first-child doesn't work

trying to target just the first .row but i seem to be targeting all rows. Why isn't first-child working? Here's my code:
<footer class="f1">
<div class="container">
<div class="row">
<div class="col-md-5">
<img src="/images/logo_footer.png" alt=""/>
</div>
<div class="col-md-7"></div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-md-5">
<img src="/images/logo_footer.png" alt=""/>
</div>
<div class="col-md-7">
</div>
</div>
</div>
</footer>
CSS
.f1 .container .row:first-child {
padding-top:42px;
position:relative;
}

The pseudo selector :first-child is targeting the first child of each thing that matches the selector: .f1 .container .row. Since you have two instances of containers and each with a row as a child, the selector is affecting the first child of each. If you want only the row of the first container to be affected, you need to specify the first container as well. Ex: .f1 .container:first-child .row

Use the below css selector it should be affecting for all rows.
.f1 .container .row {
padding-top:42px;
position:relative;
}.
It should work.

CSS :not() selector. Apply style if parent does not exist

I am trying to apply a style to a div based on its parent class. I am using the :not() selector to select the div whose parent is not .container1, the second div should be red, but it's not working.
Example 1
.myDiv:not(.container1) > .myDiv {
color: red;
}
<div class="container1">
<div class="myDiv">Div 1</div>
</div>
<div class="container2">
<div class="myDiv">Div 2</div>
</div>
Example 2
.myDiv:not(.container1 .myDiv) {
color: red;
}
<div class="container1">
<div class="myDiv">Div 1</div>
</div>
<div class="container2">
<div class="myDiv">Div 2</div>
</div>
Is this even possible with CSS? Or is my syntax just off?

You're selecting wrong elements. No reverse lookups possible, see here:
div:not(.container1) > .myDiv {
color: red;
}
<div class="container1">
<div class="myDiv">Div 1</div>
</div>
<div class="container2">
<div class="myDiv">Div 2</div>
</div>
Ideally, you'd group those parent divs under the same class in order to avoid the super-generic div selector:
.container:not(.container1) > .myDiv {
color: red;
}
<div class="container container1">
<div class="myDiv">Div 1</div>
</div>
<div class="container container2">
<div class="myDiv">Div 2</div>
</div>

CSS can't do "parent lookups" like that. You would need to reverse the structure to something like:
.my-container:not(.container1) .myDiv
Granted, you would need to add the shared my-container class to all "parent" divs of interest.

Target the first element only if it has other siblings

Without adding any classes (or touching the HTML) is there a way to target the first element inside a div ONLY if there is a second element in that div? Below is my HTML:
<div class="grid">
<div class="content">I WANT TO APPLY CSS TO THIS</div>
<div class="content">But only if there is 2nd .content element in the same parent element</div>
</div>
<div class="grid">
<div class="content">Don't apply here</div>
</div>
<div class="grid">
<div class="content">Don't apply here</div>
</div>
<div class="grid">
<div class="content">I WANT TO APPLY CSS TO THIS</div>
<div class="content">But only if there is 2nd .content element in the same parent element</div>
</div>
A few context to this for a better picture ... I want to center the .content if it's the only .content inside .grid. But if there are two .content divs, then I want them to float next to each other.
Note:
I already know I can target the second .content by
.grid .content:nth-child(2) { ... }

.grid > .content:first-child:not(:only-child) {
color: blue;
}
<div class="grid">
<div class="content">I WANT TO APPLY CSS TO THIS</div>
<div class="content">But only if there is 2nd .content element in the same parent element</div>
</div>
<div class="grid">
<div class="content">Don't apply here</div>
</div>
<div class="grid">
<div class="content">Don't apply here</div>
</div>
<div class="grid">
<div class="content">I WANT TO APPLY CSS TO THIS</div>
<div class="content">But only if there is 2nd .content element in the same parent element</div>
</div>
:first-child:not(:only-child) would be your selector.

Select all but first element using CSS3

I need to select all headers but the first
<div class="block">
<div class="header">first</div>
</div>
<div class="block">
<div class="header">second</div>
</div>
<div class="block">
<div class="header">third</div>
</div>
<div class="block">
<div class="header">fourth</div>
</div>
Using jquery I would do this $(".header:not(:first)"), I'm however restricted to CSS/CSS3. I cannot tag the elements other than in my example.
Using .header:not(:first-child) wont do the trick

The .header elements are not siblings, therefore you should probably select all but the first .block element, then select the descendant .header from there:
.block:not(:first-child) .header {}
Depending on your markup, you may also want to negate the first of type if the element's types differ:
.block:not(:first-of-type) .header {}
.block:not(:first-child) .header {
color: #f00;
}
<div class="block">
<div class="header">first</div>
</div>
<div class="block">
<div class="header">second</div>
</div>
<div class="block">
<div class="header">third</div>
</div>
<div class="block">
<div class="header">fourth</div>
</div>
As David Thomas points out, you can also use the adjacent sibling combinator, + or the general sibling combinator, ~ in order to select all following siblings:
.block ~ .block .header {}
or:
.block + .block .header {}
.block + .block .header {
color: #f00;
}
<div class="block">
<div class="header">first</div>
</div>
<div class="block">
<div class="header">second</div>
</div>
<div class="block">
<div class="header">third</div>
</div>
<div class="block">
<div class="header">fourth</div>
</div>

Select the first child element from many div

How Can I select the first child element in this case below :
<div class="root">
<div class="child">1</div> <---- i want this element
</div>
<div class="root">
<div class="child">2</div>
</div>
<div class="root">
<div class="child">3</div>
</div>
i try the css below but i select all child elements
.child:first-child {
...
}

If you want this just to affect the first root then you would also add a first-of-type to root
.root:first-of-type > .child:first-of-type {
...
}

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