</head>
<body onload="update(0.5)">
<div style="width: 70%; margin: 3em auto; column-spacing: 10%;">
- <input type="text" id="a" value="source text">
- <input type="text" id="b" value="target text">
+ <input type="text" id="a" value="Do you like green eggs and ham?">
+ <input type="text" id="b" value="I do not like them, Sam-I-am.">
</div>
<div id="text" style="font-size: 3em; text-align: center;"></div>
<input type="range" value=0.5 max=1.00 step=0.00390625 oninput="update(this.value);"