The Mystery Of The CSS Float Property

Years ago, when developers first started to make the transition to HTML layouts without tables, one CSS property that suddenly took on a very important role was the float property. The reason that the float property became so common was that, by default, block-level elements will not line up beside one another in a column-based format. Since columns are necessary in virtually every CSS layout, this property started to get used — and even overused — prolifically.

The CSS float property allows a developer to incorporate table-like columns in an HTML layout without the use of tables. If it were not for the CSS float property, CSS layouts would not be possible except using absolute and relative positioning — which would be messy and would make the layout unmaintainable. [Detail]