In CSS, what does the "float" property do?

The "float" property in CSS is used to position elements to the left or right of their containing element, allowing text and inline elements to wrap around them. When an element is floated, it is taken out of the normal document flow, meaning that subsequent elements will behave as if the floated element does not occupy space. This is particularly useful for creating layouts where images or sidebars are aligned to one side while allowing other content, like text, to flow around them.

This ability to position elements horizontally can create interesting layouts and is often used in conjunction with other layout techniques. It is important to note, however, that the float property is primarily effective for inline and block elements, and does not inherently provide a full layout management solution like modern flexbox or grid systems.