Упорядочить содержимое в предсказуемые столбцы, каждый из пяти элементов, может показаться заданием для display: grid
:
ul {
/* set the layout to grid: */
display: grid;
/* define the number of rows you
require: */
grid-template-rows: repeat(5, 1fr);
/* set the flow of the grid to follow
a columnar layout: */
grid-auto-flow: column;
}
<div>
<ul>
<li>Assertively mesh</li>
<li>client-centered</li>
<li>niches and covalent networks</li>
<li>Uniquely e-enable</li>
<li>team driven benefits</li>
<li>rather than exceptional</li>
<li>architectures Continually</li>
<li>foster cutting-edge</li>
<li>open-source core</li>
<li>process-centric</li>
</ul>
</div>
JS Fiddle demo .
Хотя, если вы действительно хотите использовать flex-box, вы может :
*,
::before,
::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
ul {
/* Use the flexbox layout: */
display: flex;
/* set the content direction to
columns: */
flex-direction: column;
/* let the contents wrap to
new columns once the
boundaries of the element are
reached: */
flex-wrap: wrap;
/* set the height of the containing
element, in order for the wrapping
to occur: */
height: 10em;
/* entirely irrelevant: */
list-style: none;
max-width:500px;
}
li {
/* set the height of the individual
'rows' to be 20% of the total height
of the parent, to enforce the five-
items per 'column': */
height: 2em;
line-height: 2em;
width: 45%;
}
/* Irrelevant, but allows 'column-headings'
to be styled: */
li:nth-child(5n + 1) {
font-weight: bold;
border-bottom: 1px solid #000;
}
<div>
<ul>
<li>Assertively mesh</li>
<li>client-centered</li>
<li>niches and covalent networks</li>
<li>Uniquely e-enable</li>
<li>team driven benefits</li>
<li>rather than exceptional</li>
<li>architectures Continually</li>
<li>foster cutting-edge</li>
<li>open-source core</li>
<li>process-centric</li>
</ul>
</div>
JS Fiddle demo .