How to float 3 LI's to the left and 3 to the right and maintain original sequence?

Tags: html,css,css3,flexbox

Problem :

I have a list of 6 list items. Each item's width is only 5% of the total UL. I'm trying to get the remaining 60% of empty space to appear after item 3.

I've attempted by floating items 4,5 & 6 to the right. But that causes them to appear out of sequence. They appear backwards as 6,5 & 4.

How i can achieve the desired results? This is a simplified version. Setting item 3 as width 65% is not an option!

Goal: 1,2,3 60% empty space 4,5,6

<li class="a">1</li>
<li class="a">2</li>
<li class="a">3</li>

<li class="b">4</li>
<li class="b">5</li>
<li class="b">6</li>

As stated the below CSS does not work

ul#six-items {

li {

li.a {float:left}

li.b {float:right}

Solution :


    <li class="a">1</li>
    <li class="a">2</li>
    <li class="a">3</li>
    <li class="b b4">4</li>
    <li class="b">5</li>
    <li class="b">6</li>


ul {
    display: flex;
    list-style-type: none;
    padding-left: 0;

li { width: 5%; }   

li.b4 { margin-left: auto; }


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