#mainheader header h1,
                #mainheader header h2 {
                    color: #18127F;
                }
            
            
                @media screen and (max-width: 768px) and (orientation : landscape){
                    #mainheader {
                        background-image:url('/media/images/gasmeter-1_276350687.2e16d0ba.fill-736x414-c100.jpg');
                    }
                }
            
            
                @media screen and (max-width: 768px) and (orientation: portrait) {
                    #mainheader {
                        background-image:url('/media/images/gasmeter-1_276350687.2e16d0ba.fill-414x735-c100.jpg');
                    }
                }
            
            
                @media screen and (min-width: 768px) and (orientation: landscape){
                    #mainheader {
                        background-image:url('/media/images/gasmeter-1_276350687.2e16d0ba.fill-1024x768-c100.jpg');
                    }
                }
            
            
                @media screen and (min-width: 768px) and (orientation: portrait){
                    #mainheader {
                        background-image:url('/media/images/gasmeter-1_276350687.2e16d0ba.fill-768x1024-c100.jpg');
                    }
                }
            
            
                @media screen and (min-width: 1024px) and (orientation: landscape){
                    #mainheader {
                        background-image:url('/media/images/gasmeter-1_276350687.2e16d0ba.fill-1600x600-c100.jpg');
                    }
                }
            
            
                @media screen and (min-width: 1024px) and (orientation: portrait){
                    #mainheader {
                        background-image:url('/media/images/gasmeter-1_276350687.2e16d0ba.fill-1280x1920-c100.jpg');
                    }
                }