CSS : Parent won't clearing child with absolute position - css

Question

So i have 3 box:
Box 1 = red
Box 2 = blue
Box 3 = yellow
Box 1 contains Box 2
Box 2 contains Box 3
Box3 are floated divs and have been cleared using extra div style="clear:both"
I want to have Box 2 as an absolute position to Box 1 like this :
http://i301.photobucket.com/albums/nn42/b1rk0ff/done_zpsd3cd25c0.png
I have tried like this but won't work :
Html :
<div class="box1">
<div class="box2">
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div style="clear:both;"></div>
</div>
testing
</div>
Style :
.box1 {
width:300px;
background-color: red;
position: relative;
}
.box2 {
width: 200px;
background-color:blue;
position: absolute;
right:-100px;
top:30px;
}
.box3 {
height:50px;
width: 50px;
background-color:yellow;
float:left;
margin:10px;
color:black;
}
Here's the codepen :
http://codepen.io/anon/pen/Kkirs?editors=110
Anybody could help?
Thank you

Answer 1

what about removing position:relative from .box1, and change position:absolute to .position:relative in .box2
See snipet below, and take a look at the comments in .box2
.box1 {
width: 300px;
background-color: red;
}
.box2 {
width: 200px;
background-color: blue;
position: relative;
right: -150px; /* changed this value to -150px » was -100px */
top: 10px; /* changed this value to 10px » was 30px */
padding:10px /* add padding as you need and if you need */
}
.box3 {
height: 50px;
width: 50px;
background-color: yellow;
float: left;
margin: 10px;
color: black;
}
<div class="box1">
<div class="box2">
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div style="clear:both;"></div>
</div>
testing
</div>

Answer 2

Why can't you just set a fixed height for .box1?
.box1 {
width:300px;
background-color: red;
position: relative;
height:250px;
}
.box2 {
width: 200px;
background-color:blue;
position: absolute;
right:-100px;
top:30px;
}
.box3 {
height:50px;
width: 50px;
background-color:yellow;
float:left;
margin:10px;
color:black;
}
<div class="box1">
<div class="box2">
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div style="clear:both;"></div>
</div>
testing
</div>

Answer 3

Just replace position: absolute by position: relative.

Answer 4

since box2 is absolute box 1 does not know the height of it's children,
you will need to revert to using both relative elements (or no position definition at all) and solve this problem with margin-left and margin-top

Answer 5

Thank you all, this is what i want.
Hope it helps another newbie like me. :)
.box1 {
width: 300px;
background-color: red;
}
.box2 {
width: 200px;
background-color: blue;
position: relative;
right: -150px; /* changed this value to -150px » was -100px */
top: 10px; /* changed this value to 10px » was 30px */
padding:10px /* add padding as you need and if you need */
}
.box3 {
height: 50px;
width: 50px;
background-color: yellow;
float: left;
margin: 10px;
color: black;
}
<div class="box1">
<div class="box2">
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div style="clear:both;"></div>
</div>
testing
</div>
.box1 {
width: 300px;
background-color: red;
}
.box2 {
width: 200px;
background-color: blue;
position: relative;
right: -150px; /* changed this value to -150px » was -100px */
top: 10px; /* changed this value to 10px » was 30px */
padding:10px /* add padding as you need and if you need */
}
.box3 {
height: 50px;
width: 50px;
background-color: yellow;
float: left;
margin: 10px;
color: black;
}
<div class="box1">
<div class="box2">
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div class="box3">box-3</div>
<div style="clear:both;"></div>
</div>
testing
</div>