Generated by SassMeister.com.

SassMeister-input-HTML.html

<a href="/" class="button" title="Text on mobile">Text on desktop</a>

SassMeister-input.scss

// ----
// Sass (v3.3.14)
// Compass (v1.0.0)
// ----

.button {
  display: inline-block;
  float: left;
  @media (max-width: 1079px) {
    text-indent: -999px;
    overflow: hidden;
    &:before {
      content: attr(title);
      display: inline;
      text-indent: 0;
      float: inherit;
    }
  }
}

SassMeister-output.css

.button {
  display: inline-block;
  float: left;
}
@media (max-width: 1079px) {
  .button {
    text-indent: -999px;
    overflow: hidden;
  }
  .button:before {
    content: attr(title);
    display: inline;
    text-indent: 0;
    float: inherit;
  }
}

SassMeister-rendered.html

<a href="/" class="button" title="Text on mobile">Text on desktop</a>