Youtube and Thumbnail Size

Hello there,

First of all i am glad to have game addict theme. Thank you Nodari for great support 🙂

I have few questions since i am new to wordpress 🙁

1) When i copy paste youtube link i see sizing isn’t correctly for us it seems the width is not registering correctly. http://www.soaesport.com/destiny/
I want to know where i can change “width”

2)Another question is how can i edit thumbnail size of the news http://www.soaesport.com/destiny/
Again i want to learn where i can change width

Thank you.