JSFiddle - React, Tailwind, and code Playground

HTML

<nav>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
    <button class="span-class">span-text33</button>
    <button class="span-class">span-text44444</button>
    <button class="span-class">span-text555555</button>
    <button class="span-class">span-text1</button>
    <button class="span-class">span-text2222</button>
   ...

CSS

nav {
    max-width               : 60em;
    overflow-x              : auto;
    width                   : 100%;
    margin-left             : auto;
    margin-right            : auto;
    border                  : 1px solid grey;
    text-align              : justify;
    line-height: 130%;
}

nav button {
  border: 1px solid black; 
  background-color: #ffc;
  white-space:pre;
}
nav button:hover { background-color: #fcc; }

.text-wrapper{
    text-align : justify;
}

section.separator {
  margin: 1em 0;
}