An image will not help us help you edit CSS or otherwise make sitewide edits to your layout. Please provide a site link or list your theme (but only theme’s provided at wordpress.org are supported in this forum).
To discover what CSS is output by your theme, use a web inspection tool such as Firebug: http://getfirebug.com/ , Chrome Inspect Element: https://developers.google.com/chrome-developer-tools/ or Internet Explorer 9+ F12 Dev. Tools: http://msdn.microsoft.com/en-us/library/dd565627(v=vs.85).aspx#csstool
There are others.
When editing CSS, use a Child Theme
http://codex.wordpress.org/Child_Themes
Custom CSS Plugin, or Theme provided custom CSS option.
Edits to parent themes are lost on theme update.
Learn CSS: http://www.w3schools.com/css/
@bledisaliko
Your theme has a main-style.css file, and a style.css file. The style.css file can be found here:
/wp-content/themes/theme47929/style.css
In that file you will see this message:
@import url(“main-style.css”);
/* —————————————-
Please, You may put custom css here
—————————————- */
Try adding the following right below that message, then save the changes, and see if that does what you need…
.title-header {display: none;}
I think that should probably hide all of the page titles for you.