.my-calc-result { clear: both; scroll-margin-top: 24px; }
.my-calc-result:empty, .my-calc-status:empty { display: none; }
.my-calc-result:focus { outline: none; }
.my-calc-stale { opacity: .55; }
.my-calc [type="submit"]:disabled { cursor: wait; opacity: .65; }
.my-calc-status { clear: both; padding: .75em 0; }
.my-calc-error { color: #9c2525; }