Comment 7 for bug 1264098

I did some testing with this chunk of css, which according to w3schools.com are valid css rules.

/* tests for column styles */
.test1 {
 column-width: 10px;
 column-rule-width: 5px;
 column-rule-style: double;
 column-rule-color: #deface;
 column-count: 3;
 column-fill: balance;
 column-gap: 10px;
 column-span: 1;
}
.test2 {
 column-width: auto;
 column-rule-width: medium;
 column-rule-style: none;
 column-rule-color: black;
 column-count: auto;
 column-fill: auto;
 column-gap: normal;
 column-span: all;
}
.test3 {
 columns: 10px 3;
 column-rule: 5px double #deface;
}
.test4 {
 columns: auto auto;
 column-rule: medium none black;
}

/* tests for border styles */
.test5 {
 border-top-left-radius: 5px;
 border-top-right-radius: 5px;
 border-bottom-left-radius: 5px 3px;
 border-bottom-right-radius: 5px;
 border-image-source: url(cats.jpg);
 border-image-slice: fill;
 border-image-width: auto;
 border-image-outset: 30 30;
 border-image-repeat: round;
}
.test6 {
 border-top-left-radius: 0;
 border-top-right-radius: 0;
 border-bottom-left-radius: 0;
 border-bottom-right-radius: 0;
 border-image-source: none;
 border-image-slice: 100%;
 border-image-width: 1;
 border-image-outset: 0;
 border-image-repeat: stretch;
}
.test7 {
 border-radius: 5px 3px;
 border-image: url(cats.jpg) fill auto 30 30 round;
}
.test8 {
 border-radius: 0 0;
 border-image: none 100% 1 0 stretch;
}

/* tests for transition styles */
.test9 {
 transition-property: width;
 transition-duration: 5s;
 transition-timing-function: cubic-bezier(0.2,0.3,0.4,0.5);
 transition-delay: 2s;
}
.test10 {
 transition-property: all;
 transition-duration: 0;
 transition-timing-function: ease;
 transition-delay: 0;
}
.test11 {
 transition: width 5s cubic-bezier(0.2,0.3,0.4,0.5) 2s;
}
.test12 {
 transition: all 0 ease 0;
}
/* tests for transform properties */
.test13 {
 transform: rotate(-12deg);
 transform-style: preserve-3d;
 transform-origin: left bottom 5px;
}
.test14 {
 transform: none;
 transform-style: flat;
 transform-origin: 50% 50% 0;
}