fit-text-on-lines.js

Adjusts a text's font size to the maximum it can be, whilst still fitting onto a specified amount of lines.

~500 bytes minified.

<h1 class="ftol hero">
Some text that you want to exactly fit on a certain amount of lines
</h1>

then use the min-height css attribute to specify how many lines you want the text to fit onto, 1px = 1 line, 2px = 2 lines, etc.

.hero {
  min-height: 2px;
}

you must leave the "px"

minimun 2 words for oneline, 3 words for 2 lines etc...

line-height required, either on element, or inherited eg. from html or body

DEMO

Tested in all major browsers, IE9, FF old, Chrome older, Safari 6, Android 4.4, iOS 6