change heading size and weight

/* for the h3 tag */

.jeg_main_content .entry-content h3 strong,.jeg_main_content .entry-content h3 {
    font-weight : 900 ;
    font-size : 10px;
}

/* for the h2 tag */
.jeg_main_content .entry-content h2 strong,.jeg_main_content .entry-content h2 {
    font-weight : 900 ;
    font-size : 10px;
}