be not an element of

Ideally you do not want such an element to be part of the document.

理想情况下，您并不想要文档中有这么一个元素。

Whitehall sources confirmed that privatisation would be an element of the plan, which is due to be announced within days, but said it will not be a complete sell-off of forestry land.

来自白厅的消息确认了私有化就是计划的一部分，几天后将会宣布，但称这并不是要完全卖掉森林土地。

Previous element vertical constraint. A left float box's top margin edge may not be higher than the top margin edge of any block or floated box generated by an earlier element in the source document.

之前元素的垂直限制：左浮动框的上margin edge不能高于任何块或在由源文档中前一元素生成的被浮动框的上margin edge。