If statement #4 is passed then the inner box should float to the right and the "outer-sibling" text should flow into the vacated space. Inner contents should be blue, and outer contents red. Rules are "body {display: block; line-height: 200%; width: 400px; height: 400px}, p{display: block}", "span {display: inline}". Also "#outer {color: red}", "#sibling {color: red}", and "#inner {float: right; width: 130px; color: blue}".
All other properties of this page should be UA-default.