如何居中对齐wordpress网站主页的标题？

Question

I have a wordpress site , whose home page is a static page. I want to align the page heading centrally and make the font 48. I went to style.css and changed to :

.post-title {
    font-family: Oswald,arial,Georgia, serif;
    margin-bottom:10px;
    font-size: 48px;
    text-align:center;
}

As I changed this, heading of all the posts and pages changed to this new setting. How should I change the CSS, so that only the heading of static page will change?

Thanks in advance friends. (I am not a full time programmer, but I can understand code and do small customization if required.)

EDIT : To clarify, I want to make the changes only on the heading of static page not on all pages and posts. Currently it happens on all pages and posts.

Answer 1

Setting the margin for left/right to auto should do the trick:

.post-title {
    font-family: Oswald,arial,Georgia, serif;
    margin: 10px auto;
    font-size: 48px;
    text-align:center;
}