[Theme Horse Support Team]

Hi Allurynn,

To change the size of the post go to Appearance -> Customize/Theme Options -> Design Options Tab -> Custom CSS paste the following CSS code and Click on save button:

.entry-header .entry-title {
    font-size: 40px;
    line-height: normal;
}

Please Increase/Decrease the above digit value 40 as your wish.

Thank you!