Windows Internet Explorer 8. The -ms-background-position-x attribute is an extension to CSS, and can be used as a synonym for background-position-x in ... ... <看更多>

You have to set background-position: 50% 50% . Those -x and -y properties are only supported in Internet Explorer and Webkit browsers. ... <看更多>

<title>background repeat tester</title> ... <label>X: <span></span><input name="background-position-x" class="background-position" type="range" min="0" ... ... <看更多>

CSS Tutorial 81 - CSS background - position ... the link for next video: CSS Tutorial 82 - CSS background -s... ... <看更多>