⇩ The following blue box should be exactly half the width
of the viewport, on the left of the 50% ruler mark.
ignore this float text ignore this float text ignore this float
text ignore this float text ignore this float text ignore this
float text ignore this float text ignore this float text ignore
this float text ignore this float text ignore this float text
ignore this float text ignore this float text ignore this float
this is some dummy text this is some dummy text this is some dummy
text this is some dummy text this is some dummy text this is some
dummy text this is some dummy text this is some dummy text this is
some dummy text this is some dummy text this is some dummy text
this is some dummy text this is some dummy text this is some dummy
text this is some dummy text this is some dummy text this is some
dummy text this is some dummy text this is some dummy text this is
some dummy text this is some dummy text this is some dummy text
this is some dummy text this is some dummy text this is some dummy
text this is some dummy text this is some dummy text this is some
dummy text this is some dummy text this is some dummy text this is
some dummy text this is some dummy text this is some dummy text
this is some dummy text this is some dummy text this is some dummy
text this is some dummy text this is some dummy text this is some
dummy text this is some dummy text this is some dummy text this is
some dummy text this is some dummy text
The above gray text should flow around the blue box.
⇧