 class="fcard_bg" src="pics/fcards_ch3.png" sx=0 sy=240></div>
	<div id="fc_words" style="line-height: 1.1em; position: absolute; width: 190px; margin: 0; top:31px; left: 180px;">
		你想用哪种方式去实践间隔重复？
	</div>
</span>
<span id="flashcard_you_how_back">
	<div id="fc_words" class="fcard_center" editable="you_how" style="height:1.2em">
		Leitner盒
	</div>
</span>
<span id="flashcard_you_when_front">
	<div class="fcard_bg" src="pics/fcards_ch3.png" sx=400 sy=240></div>
	<div id="fc_wo