header .entry-header{

}
header .entry-header h3{
    font-size: 1.5rem;
}

header .entry-header .entry-excerpt p{
    font-size: 1rem;
}

.site-header.featured-image .site-featured-image .entry-header{
    width: 30rem;
}

@media only screen and (max-width: 768px) {
header .entry-header h3{
    font-size: 20px;
}

header .entry-header .entry-excerpt p{
    font-size: 16px;
}

.site-header.featured-image .site-featured-image .entry-header{
    width: 100%;
}

}