#1483, Fix bug with webkit button rollovers. Remove stale code of unknown origin related to position:relative on hover

src/definitions/elements/button.less

@@ -352,9 +352,6 @@
 .ui.inverted.vertical.buttons .button:first-child {
   margin-top: 0em;
 }
-.ui.inverted.buttons .button:hover {
-  position: relative;
-}
 
 /* States */
 .ui.inverted.button:hover {
@@ -3141,10 +3138,6 @@
   vertical-align: baseline;
   margin: @verticalMargin @horizontalMargin 0em 0em;
 }
-.ui.buttons > .button:hover,
-.ui.buttons > .active.button {
-  position: relative;
-}
 .ui.buttons:not(.basic):not(.inverted) {
   box-shadow: @groupBoxShadow;
 }