With the CSS float property, an element can be pushed to the left or right, allowing other elements to wrap around it. Here is what the CSS looks like:
Floats are also used on images to allow text to wrap around it. This is what is used when you justify your blog post images to the left and the text wraps around your image!
We use the clear:both property on the element if we do not wish it to wrap around the element before it. Here is what the CSS looks like: