Re-setting a css style when a mobile phone user switches from vertical to horizontal view

I have a webpage with a background image that looks fine when I hold my phone horizontally. Here's the code for the background image:
body {background:url(images/CoupleInSilhouette.jpg) no-repeat;
background-attachment:fixed; 
background-position:center; margin: 0 auto;
background-size: cover
}

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But since the background-position is set to center, when I view the page holding the phone vertically, the left part of the image is hidden from view. Is there code that will move the position of the background to the right by a specified number of pixels? here's the page in question: www.dijitalrealm.com/JCMusic/ManOfMyWords.html

Thanks,
John
LVL 1
gabrielPennybackReliability Business Tools Analyst IIAsked:
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Kim WalkerConnect With a Mentor Web Programmer/TechnicianCommented:
background-position can be expressed as a key word or a measurement or a combination of the two. It is usually expressed in pairs, the first keyword or measurement is the horizontal position and the second is the vertical position. The following would position the background 50 pixels from the left and centered vertically.
body{
	background-position: 50px center;
}

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This style can be selectively activated according to orientation using media queries.
@media screen and (orientation: portrait) {
	body{
		background-position: 50px center;
	}
}

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0
 
gabrielPennybackReliability Business Tools Analyst IIAuthor Commented:
Thanks, Kim, that works great. :- )
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