Shout out to the original author of the Multi-Line Type Answer Box (https://ankiweb.net/shared/info/681236951).
I personally needed this add-on and decided to maintain it under a new name (Multi-Line Type Answer Box - 2) since the original author no longer supports it.
** Instruction from original add on **
Allows embedding of an input text box () in your notes. The guess can be automatically compared to the answer, just like the built-in {{type:}} template feature. </p>
<p>Note: For the best retention, you should keep the answers to your notes as short and specific as possible. This is discussed in many spaced repetition guides you can find online. Don't let this addon make you forget that!</p>
<p>After installing, try it by adding a new note type (maybe cloned from "Basic (type in the answer)"), and editing the cards to:</p>
<p>Front template:
{{Front}}
[[typebox:Back]]</p>
<p>Back template:
{{FrontSide}}</p>
<p>The style of the text box can be set in the card styling like this:
textarea {
height: 300px;
}</p>
<p>After entering your guess in the text box, you can press CTRL+ENTER while the box is selected to show the answer.</p>
<p>To not do any correction on your guess, instead include the box as:
[[typebox:]]</p>
<p>You can include the input box in cloze cards as well by including [[typebox:]] on both the front and back of the card.</p>
<p>The elements can be styled with the CSS selectors '.textbox-input' (<textarea>), '.textbox-output-parent' (<div>), and '.textbox-output' (<pre>).</p>