xys
- position:relative; - no purpose other than we can now specify a z-index.
- width:62px; - makes the width 62px.
- height:46px; - makes the height 46px.
- border:1px solid #888; - adds a 1px border dark grey.
- z-index:100; - applies a z-index of 100 to make sure that the thumbnails stay visible on the top layer.

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