在某些程序中，你甚至可以“实时的”在屏幕上拖动边线来调整边距。
You can also adjust the margins "on the fly" by moving the guides on screen (in some programs).
与颜色相似，边线很容易就可以使用CSS进行调整，但是能做的也就到此为止。
Similar to color, borders can be easily adjusted with CSS, but it can only take us so far.
继续用外发光来添加一个浅灰色的边，调整扩展值到最大这样我们可以得到一个双边线效果。
Use the Outer glow option to add a very slight grey border, adjusting the Spread to the Max will turn the default glow into a solid strip of colour which helps add this double stroke effect.
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