Adding a newline in css - css

Question

I'm looking for the simplest way to break up a collection of inline-blocked divs without resorting to extra markup (such as br).
I started off naively thinking that the following would do the trick except that 'four' ends up on a line of its own as well which I don't really understand.
.inline {
display:inline-block;
}
.newline {
display:block;
}
<div class="inline">one</div>
<div class="inline">two</div>
<div class="inline newline">three</div>
<div class="inline">four</div>
I have tried solutions using :after/:before found here on Stackoverflow but these only work for me if my elements are inline instead of inline-block.
Regrettably I also need to support IE6!
Attempt with floats
This example below does not display properly in IE 6
.inline {
float: left;
width: 50px;
height: 50px;
background: #F00;
}
.newline {
clear: left;
}
<div class="inline">one</div>
<div class="inline">two</div>
<div class="inline newline">three</div>
<div class="inline">four</div>
The result in IE 6

Answer 1

For IE6 and other old browsers you need to add a clear line for example using this code:
<div class="inline">one</div>
<div class="inline">two</div>
<div class="visualClear"></div>
<div class="inline">three</div>
<div class="inline">four</div>
.inline {
float: left;
width: 50px;
height: 50px;
background: #F00;
}
.visualClear {
clear: both;
display: block;
}
I know that it isn´t very pretty but it will work for you.