Firstly you have to commented the function ‘simplecatch_headerdetails();’ which define in header.php file of your theme . After this you can use this code in ‘header.php’ file to define the size of the logo. This code will be used after this class ‘layout-978’:
<div class="logo_wrap">
<span>
<a href="<?php echo home_url( '/' ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a>
</span>
</div>
And you also add the class in style.css of your theme :
/*add the logo class*/
.logo_wrap{
margin: 8px 0 15px 0;
float: left;
font-size: 30px;
line-height: 36px;
width: 169px;
height: 78px;
}
.logo_wrap a {
color: #000;
font-weight: bold;
text-decoration: none;
display: block;
width: 90px;
height: 89px;
text-indent: -999em;
background: url(images/logo.png) no-repeat;
}