品记

摘要： float is one of the most interesting and often-used CSS properties. It takes avalue of left, right, or none (though none, the default, is rarely used). floatforces the element to which it’s applied to display outside its natural position inthe containing box; a float value of left or right pushes th 阅读全文

摘要： By default, all visual browsers will apply a 50-pixel margin to the left edge of a list.This allows room for the list item markers (bullets in the case of a bulleted list;numbers in the case of an ordered list). Unfortunately, the CSS Specificationdoesn’t say explicitly whether this space should be 阅读全文