[column-rule-valid.html]
expected:
if (os == "android") and fission: [OK, TIMEOUT]
[e.style['column-rule'\] = "dotted" should set the property value]
expected: FAIL
[e.style['column-rule'\] = "red" should set the property value]
expected: FAIL
[e.style['column-rule'\] = "10px" should set the property value]
expected: FAIL