When selected, displays a verticalmargin along the left edge of the editor's text area.
选定后，将沿着编辑器文本区左边缘显示一条垂直边距。
2
This means we will deliver excellent margin for the vertical landing and short takeoff performance we’ve committed to our STOVL customers," he said.
这意味着我们可以为STOVL客户提供更加良好的短距/垂直起降性能。
3
Line-box vertical constraint. A left float box's top margin edge may not be higher than the top padding edge of any line-box containing a box generated by an earlier element in the source document.
line - box垂直限制：左浮动框的上margin edge不能高于任何包含由源文档中前一元素生成的框的line - box的上padding edge。