默认情况下，项目符号点前有 个空格.如果没有，您可能正在使用某种重置CSS".

There is spacing before bullet points by default. If there isn’t, you are probably using a "Reset CSS" of some kind.

要将间距设置为所需值，请将ul和li元素的padding-left和margin-left都设置为零，然后将其中之一设置为所需值.

To set the spacing to a desired value, set padding-left and margin-left of both ul and li elements to zero and then set one of them to the desired value.