css

// ZuZizqDF4q8
:root {
  --ON: initial;
	--OFF: ;
}

-khtml-border-radius: px;
-moz-border-radius: px;
-webkit-border-radius: px;
border-radius: px;

/*** webkit ***/

// instead of transform-origin: center;
transform-origin: 50% 50%;

// selector bug
body { -webkit-animation: bugfix infinite 1s; }
@-webkit-keyframes bugfix { from { padding: 0; } to { padding: 0; } }

:nth-child(n) // http://stackoverflow.com/a/17220145/248058

/*** mozilla ***/

select:-moz-focusring {
  color: transparent;
  text-shadow: 0 0 0 #?;
}
button::-moz-focus-inner,
input[type="button"]::-moz-focus-inner {
  border: 0;
}
input:invalid {
  box-shadow: none;
}

// https://stackoverflow.com/a/14919623/248058
-moz-animation-name: name;

/*** microsoft ***/

select::-ms-value {
  color: ?;
  background-color: ?;
}

label[for='name'], label[htmlFor='name'] {} // IE7