.well 创建内边距和外边距和边框
.well-lg 创建更大的内边距和外边距和边框
.well-sm 创建更小的内边距和外边距和边框
<div class="well well-lg">您好,我在大的 Well 中!</div>
<div class="well well-sm">您好,我在小的 Well 中!</div>
.well 创建内边距和外边距和边框
.well-lg 创建更大的内边距和外边距和边框
.well-sm 创建更小的内边距和外边距和边框
<div class="well well-lg">您好,我在大的 Well 中!</div>
<div class="well well-sm">您好,我在小的 Well 中!</div>