How to style nested divs - css

Question

I want to change the colours of divs separately but don't want to use the following css.
The syntax I am using is as follows:
HTML:
<div id="wrapper"><div><div><div><div><div><div><div>
</div></div></div></div></div></div></div></div>
CSS:
div>div>div {background-color:yellow;}
div>div>div>div {background-color:green;}
div>div>div>div>div {background-color:indigo;}
div>div>div>div>div>div {background-color:violet;}
div>div>div>div>div>div>div {background-color:chocolate;}
div>div>div>div>div>div>div>div {background-color:brown;}

Answer 1

Your best/only easy solution is using Classes or Id's and attaching them to your CSS sheet (as per Daniel's answer).
HTML:
<div id="wrapper" class="ClassDiv1">
<div class="ClassDiv2">
<div class="ClassDiv3">
<div class="ClassDiv4">
<div class="ClassDiv5">
<div class="ClassDiv6">
<div class="ClassDiv7">
<div class="ClassDiv8">
CSS:
.ClassDiv1{background-color:yellow;}
.ClassDiv2{background-color:green;}
.ClassDiv3{background-color:indigo;}
etc.
If you want 1 color for 2 div tags you can just do this in your style:
.ClassDiv1 .ClassDiv2{background-color:brown;}
But seriously, rather go to W3Schools and learn a bit on CSS as it will help you a LOT!

Answer 2

Use a naming convention.
.innerDiv1{
background-color:yellow;
}
.innerDiv2{
background-color:green;
}
.innerDiv3{
background-color:indigo;
}
.innerDiv4{
background-color:violet;
}
.innerDiv5{
background-color:chocolate;
}
.innerDiv6{
background-color:brown;
}
or you can use a pre-processor like LESS and nested inside each other
.innerDiv{
background-color:yellow;
div{
background-color:green;
div{
background-color:indigo;
div{
background-color:violet;
div{
background-color:chocolate;
div{
background-color:brown;
}
}
}
}
}
}

Answer 3

I would go with classes:
.bg-yellow { background-color: yellow; }
...
.bg-brown { background-color: brown; }
HTML:
<div id="wrapper">
<div class="bg-yellow"><div><div><div><div><div><div class="bg-brown">
</div></div></div></div></div></div></div>
</div>
Using this solution makes it easier to identify the color of the element when inspecting the HTML.