| | Wrapping is only performed at an allowed break point, called a soft wrap |
| | opportunity. In most writing systems, in the absence of hyphenation a soft |
| | wrap opportunity occurs only at word boundaries. However, when the |
| | word-wrap property has a value of break-word, unbreakable "words" may be |
| | broken at an arbitrary point to prevent overflow, while still preserving |
| | https://www.w3.org/TR/css3-text/#soft-wrap-opportunity |
| | https://www.w3.org/TR/css-text-3/#line-break-details |
| | https://www.w3.org/TR/css-text-3/#word-wrap |
| | On overflow, the first available break point will be selected. With word-wrap |
| | normal, this will be the first soft-wrap location. With word-wrap break-word, |
| | this will be at the first grapheme cluster boundary. |
| background-color: #03a9f4; |
| <div class="containing-block"> |
| <div>abcdefghijkl<span class="word-wrap-break-word">op</span> qr<span>st</span></div> |
| <div>abcdefghijkl<span>op</span><span class="word-wrap-break-word">q r<span>s t</span></span></div> |
| <div>abcdefghijklmn<span>op</span>qr<span class="word-wrap-break-word">s t </span></div> |