Ganesh Paygude

Hello

You can achieve this by adding below CSS in you css file

.site-title {
font-size: 28px;
float: left;
width: 73%;
}
.site-description {
color: #ffffff;
float: left;
}

Hello Akubrin,

If You want to site title in one line either you can change the font size
body .site-header h1.site-title {font-size:18px; } OR if you dont want to decrease font size then You can replace class=”col-sm-3″ by class=”col-sm-7″ of logo div wrap div and navigation wrap to class=”col-sm-5″.

if and only if your navigation menu will never be more than 4 in
future also other wise the decrese font-size is the better option

You may use this filter to adjust the excerpt length:
function custom_excerpt_length( $length ) {
return 20;
}
add_filter( ‘excerpt_length’, ‘custom_excerpt_length’, 999 );

For modifying the static page their is page.php template file you can use this file for customizing and if you want different template files for different page then need to create template this may help you in creating template https://developer.www.ads-software.com/themes/template-files-section/page-template-files/page-templates/