Mobile Responsive Media screen CSS

@media (min-width:176px){ .topmenu{display:none;} } @media (min-width:576px){ .topmenu{display:none;} } @media (min-width:768px){ .topmenu{display:block;} } @media (min-width:992px){ .topmenu{display:block;} } @media (min-width:1200px){ .topmenu{display:block;} }

HTML Background CSS

How to give background images by CSS: background: lightblue url(“img_tree.gif”) no-repeat fixed center; background-repeat: no-repeat; background-attachment: fixed; background-size: 300px 100px; Setting Background Position background-position: left top; left top left