image not displaying on entire page after reducing size of browser ... using carousel slider

img is not displayed on full screen when browser size is reduced - using carousel slider

i am using bootstrap 3 .... i used the sliders [[ carousel slide ]] my problem is >that when i reduced my browser i see [[ GABS ]] from left side and right i just highlighted as you can see in image ... kindly provide me a >solution that my images display on full screen after reducing the size of browser

thanks ..