button[data-type="regenerate_external_css"]:before {
	font: normal 20px/.5 dashicons;
    speak: none;
    display: inline-block;
    padding: 0;
    top: 9px;
    left: -4px;
    position: relative;
    vertical-align: top;
    content: "\f463";
}

button[data-type="regenerate_external_css"].loading:before {
	animation: rotation 1s infinite linear;
}

button[data-type="regenerate_external_css"].success:before {
    content: "\f147";
    color: #46b450;
}