16 <div>This tests that z-index on non-positioned flex-items works. The green boxes should be above the orange boxes, which should be above the purple boxes, which are above the salmon boxes.
<div>
17 <div class=
"container" style=
"position:relative">
18 <div class=
"large" style=
"z-index: 1; background-color: salmon;"></div>
19 <div class=
"large" style=
"z-index: 100; background-color: orange; left: 50px;"></div>
20 <div class=
"small" style=
"z-index: 150; background-color: green"></div>
21 <div class=
"small" style=
"z-index: 50; background-color: purple; top: 25px;"></div>
23 <div class=
"container" style=
"position:relative; top: 50px">
24 <img class=
"large" style=
"z-index: 1; background-color: salmon;"></img>
25 <img class=
"large" style=
"z-index: 100; background-color: orange; left: 50px;"></img>
26 <img class=
"small" style=
"z-index: 150; background-color: green"></img>
27 <img class=
"small" style=
"z-index: 50; background-color: purple; top: 25px;"></img>