How do I change the appearance of the text of my post’s titles?

I want to change the text of my post’s titles to match my site…

These are the codes I think have something to do with it:

#content {
        margin-left:255px;
        padding-right:15px;
        padding-left:15px;

}
 #content .post {
        padding:5px;
        margin-left:10px;
        color:#444;
        float:left;
        width:550px;

 }

 #content h2,#content h3 a{
        font-weight:normal;
        font-family:Arial;
        border-bottom:none;
        padding-left:35px;
        padding-top:8px;
        padding-bottom:8px;
        background:transparent url("") no-repeat center left;
 }
 #content h2 a{
        color:#343434;//03B6C7;
        text-decoration:none;
 }
 #content h2 a:hover {
        color:#c00;//0FE7F1;
 }
 #content .entry {
        padding:5px;
        padding-left:15px;

I also don’t want it indented like it is now… & I want the date to be under it, not over it like it is now. Help?!

Site: Brittanywigand.com
Theme: Silver Dreams