The CSS property clear
Clear works in conjunction with float and prevents an element of being adjacent to another: it is moved to a new line.
Clear depends on the previous item, in the same container, it does not take into account the clear property in the style of the same element.
left
The element is located beneath all the elements whose float property is left.
right
Similarly for elements with float right.
both
The element is placed below all the elments in the same container with float left or right.
none
The property is set aside.
Examples
<p style="float: left; ">
<p style="clear: left;"> Clear applies to the second paragraph, and it is positioned on the left.
Contradictory
<p style="float: right; ">
<p style="clear: left;"> Clear has no effect because the previous paragraph is to float right while it refers to the attribute float left.
<p style="float: left;clear: left;"> Clear has no effect because the float and clear properties are part of the style of the same paragraph.
References