Generated by SassMeister.com.

SassMeister-input-HTML.html

<ul class="tabs">
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 1</a>
  </li>
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 2</a>
  </li>
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 3</a>
  </li>
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 4</a>
  </li>
</ul>

SassMeister-input.sass

// ----
// Sass (v3.3.0.rc.3)
// Compass (v1.0.0.alpha.18)
// ----

@import compass/reset

.tabs
	display: table
	table-layout: fixed
	width: 100%
	overflow: hidden

.tabs__item
	text-align: center
	display: table-cell

.tabs__action
	display: block

SassMeister-output.css

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  font-size: 100%;
  vertical-align: baseline;
}

html {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

caption, th, td {
  text-align: left;
  font-weight: normal;
  vertical-align: middle;
}

q, blockquote {
  quotes: none;
}
q:before, q:after, blockquote:before, blockquote:after {
  content: "";
  content: none;
}

a img {
  border: none;
}

article, aside, details, figcaption, figure, footer, header, hgroup, main, menu, nav, section, summary {
  display: block;
}

.tabs {
  display: table;
  table-layout: fixed;
  width: 100%;
  overflow: hidden;
}

.tabs__item {
  text-align: center;
  display: table-cell;
}

.tabs__action {
  display: block;
}

SassMeister-rendered.html

<ul class="tabs">
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 1</a>
  </li>
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 2</a>
  </li>
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 3</a>
  </li>
  <li class="tabs__item">
    <a href="#" class="tabs__action">Tab 4</a>
  </li>
</ul>