flex lines between items
######## HTML ########
<div class="Container">
<ul class="Flex">
<li class="Flex-item">Lorem</li>
<li class="Flex-item">consectetur</li>
<li class="Flex-item">vestibulum</li>
<li class="Flex-item">nec</li>
<li class="Flex-item">condimentum</li>
</ul>
</div>
########## CSS ###########
html {
box-sizing: border-box;
}
.Container {
max-width: 70%;
margin-right: auto;
margin-left: auto;
background: blue;
padding-top: 20px;
padding-bottom: 20px;
}
.Flex {
display: flex;
flex-flow: row wrap;
justify-content: space-between;
list-style: none;
margin: 0;
padding: 0;
}
.Flex-item {
flex: 1 1 auto;
background: red;
position: relative;
text-align: center;
line-height: 40px;
}
.Flex-item + .Flex-item {
border-left: solid 1px white;
}
/** Optional for OPs exact layout */
.Flex-item:first-child {
text-align: left;
}
.Flex-item:last-child {
text-align: right;
}
reference:
https://stackoverflow.com/questions/41631136/add-dividing-line-between-flex-items-with-equal-space-distribution/42160101