【word_spacing】
<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
.three {
word-spacing: -4px;
}
.three span {
word-spacing: normal;
}
</style>
</head>
<body>
<div class="three">
<span>3. test</span> <span>test</span> <span>test inner spaces</span>
</div>
<div class="two">
<span>2. test</span><span>test</span>
</div>
<div class="one">
<span>1. test</span> <span>test</span>
</div>
</body>
</html>
