web页面放到手机页面，缩放问题_html/css_WEB-ITnose

有时候写页面样式不规范，很多页面元素写死尺寸时，web页面尺寸比较大放到移动端访问时，就背缩放了，div或者按钮变得好小

可以加段js，效果会好点

 1 <script> 2 ! function( userAgent ) { 3     var screen_w = parseInt(window.screen.width), 4         scale = screen_w / 640; 5     if ( /Android (\d+\.\d+)/.test( userAgent ) ) { 6         var version = parseFloat( RegExp.$1 ); 7         document.write( version > 2.3 8             ? '<meta name="viewport" content="width=640, minimum-scale = ' + scale + ", maximum-scale = " + scale + ', target-densitydpi=device-dpi">' 9             : '<meta name="viewport" content="width=640, target-densitydpi=device-dpi">' );10     } else {11         document.write( '<meta name="viewport" content="width=640, user-scalable=no, target-densitydpi=device-dpi">' );12     }13 }( navigator.userAgent );14 15 16 </script>