wp-calypso/client/components/clipboard-button-input/style.scss

.clipboard-button-input {
	position: relative;
}

.clipboard-button-input .clipboard-button {
	position: absolute;
	top: 50%;
	right: 4px;
	transform: translateY(-50%);
	overflow: visible;

	&:not(:disabled)::before {
		@include long-content-fade( $size: 16px );
		right: auto;
		left: -17px;
	}

	&:focus::before {
		right: auto;
		left: -19px;
	}
}