Variation in font size "Posted on" vs. Date

Hello, I felt that the font size was too small on my site so I used the following CSS code to increase it:

html body {
font-size: 17px;
}

Which worked great, except I noticed in my posts that now the “Posted on” phrase (beneath the title) has increased to the 17 px size, while the date beside it on the same line has remained a very small font. How can I make them a consistent size?

My posts are in draft state currently, but I have attached a screenshot. Thank you!

.entry-date {
font-size: 17px;
}

Hey there

This code should work:

.entry-date {
font-size: 17px;
}

thanks to @hvenja
but if for some reason it’s not working please provide a link to your website