It's good to use a reference for the shape, such as drawing an ellipse within which the fire will remain and you can send the flames up to any of the edges of this ellipse.

比较好的做法是用一个参照物，比如画一个椭圆形让火焰保持在这个范围之内，而且你可以让火苗窜到椭圆的边缘处。

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But if you can't see these subtle movements taking place, you will stay identified as the observer (ego), and remain within the thought process, which is why you can't ever experience the gap.

然而如果你没有看到发生的微妙变动，你仍被认定为观察者(自我)，并且保持在思维过程中，这就是为什么你不能感受到空隙的原因。

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If you later wanted part of the text in the slogan div to be graphical, and another part-say a sub-title or elaboration-to remain normal text, you could surround just the hidden text within a span.

如果您以后希望标语div内的部分文本是图像，并且另一部分—比如副标题或说明性文字—保持为普通文本，您可以仅将隐藏的文本放置在span内部。

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