jquery - Is it ok to just have <meta name="viewport" content="width=device-width"> -


i have 960px wide website , managed make responsive mobiles. styles apply devices under 767px , looking on mobiles , small tablets.

then ipad portrait came play. looking on landscape not on portrait long have <meta name="viewport" content="initial-scale=1,maximum-scale=1,width=device-width"> in header.

then created different jquery events check portraitand change viewport everytime, issues.

this have far. code isnt question. question is, ok leave <meta name="viewport" content="width=device-width"> in header , tested on ipad, iphone, android, samsung, kindle fire (on simulator) , seem work fine now. im wondering need have initial-scale=1,maximum-scale=1?

my code doesnt work well. 

var isipad = navigator.useragent.match(/ipad/i) != null;  if(isipad){      jquery(window).bind('orientationchange', function(e) {       switch ( window.orientation ) {           case 0: //port         jquery('meta[name=viewport]').attr('content','width=device-width');         alert('1');         break;          case 180: //port         jquery('meta[name=viewport]').attr('content','width=device-width'); alert('2');         break;        }      });  } else if(!isipad){     jquery('meta[name=viewport]').attr('content','width=device-width, initial-scale=1, maximum-scale=1,minimum-scale=1'); }

you can use meta in header 

<meta name="viewport" content="width=device-width, height=device-height" >

you can in css using @media tags

@media screen , (device-width: 768px) {   /* general ipad layouts */ }  @media screen , (min-device-width: 481px) , (max-device-width: 1024px) , (orientation:portrait) {   /* portrait layouts */ }  @media screen , (min-device-width: 481px) , (max-device-width: 1024px) , (orientation:landscape) {   /* landscape layouts */ }

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