https://www.gamebreakdowns.com/wp-content/themes/piano-black/style.css line 44
Your header image is 95px, but the #header which contains it is 115px.
Either:
1) Increase the size of LogoIdea2.png such that its height is 115px, and make the change in style.css, or
2) Decrease the size of #header to 95px (the quicker solution) in style.css.
