Thanks, it has been very useful.
Finally, I modified template.css in this way:
p.site-slogan {
background: #444 < delete this line in order to eliminate the slogan line background
color: #999
display: block;
font-size: 85%; < change font-size: 28px or another value
letter-spacing: 1px;
margin: 8px 0 0;
padding: 0 5px;
text-align: center;
text-transform: uppercase;
}
I deleted p.site-slogan in this piece of code:
small, .small { color: #999 }
/* Small text ---*/
small, .small, .smalldark, .createby, .createdate, .modifydate, .img_caption, .contenttoc,
p.site-slogan, a.readon, .ja-navhelper, #ja-footer { font-size: 92%; }
Now it’s working correctly
The code you wrote affects the logo text, but I wanted to modify the following line, the slogan line.