.customize-control-poster-heading {
  margin-top: 18px;
}

.poster-customizer-heading:before  {
	content: "\f111";
	font-family: dashicons;
	padding: 3px;
}
.poster-customizer-heading {
    display: block;
    margin: 0 -12px;
    padding: 13px 12px;
    background-color: #e8e8e8;
    color: #0d0c0c;
    border: 1px solid #ddd;
    border-left: 0;
    border-right: 0;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    line-height: 1;
    text-transform: uppercase;
    box-shadow: inset 0px 0px 9px 3px #cacaca;
}

.customize-control-poster-heading .description {
  margin-top: 10px;
}