dashicon-genesis-searchbox-styles.css

.search-form {
	position: relative;
}

.search-form > input {
    padding-left: 40px;
}

.search-form input[type="submit"] {
    background: none !important;
    border: none;
    clip: inherit;
    color: #4a545a;
    display: inline-block;
    font: 28px/1 'dashicons';
    height: 38px;
    padding: 0 10px 0 12px;
    position: absolute;
    left: 2px;
    top: 12px;
    vertical-align: top;
    width: 38px;
}