Responsiveness Not Working on Mobile - css

Question

I have my first responsive design website here
I tried resizing my window using Chrome and FF and i see that the responsiveness is working ... But when i viewed it on my phone it looks the same as i see it in my desktop.
Here's my CSS
#import url(http://fonts.googleapis.com/css?family=Roboto);
#import url(http://fonts.googleapis.com/css?family=Lato:300,700);
html {
font-family: 'Roboto', sans-serif;
font-size: 14px;
line-height: 1.2em;
background-color: #FFF;
color: rgb(68, 68, 68);
font-weight: normal;
!important;
-webkit-font-smoothing: antialiased;
}
.side-container {
margin: 0;
padding: 0;
padding-right: 0;
}
.sidebar {
width: auto;
position: fixed;
overflow-x: auto;
overflow-y: auto;
background-color: transparent;
float: left;
border-left: 740px solid transparent;
padding: 50px 0 0 0;
}
.main-content-wrapper {
margin: 0;
width: 620px;
padding: 60px 60px 200px 60px;
position: absolute;
}
.postcont.main-content-wrapper, .main-content-wrapper {
margin: 0;
}
::selection {
background: #202020;
color: #fff;
text-shadow: none;
}
.ease {
-webkit-transition: all 0.2s ease-in-out;
-moz-transition: all 0.2s ease-in-out;
-o-transition: all 0.2s ease-in-out;
transition: all 0.2s ease-in-out;
}
.prettyprint {
background-color: rgb(46, 46, 46);
display: inline-block;
padding: 2px 8px;
border: 1px solid rgb(0, 0, 0);
font-size: 0.9em;
}
.profile {
padding: 60px 20px 20px 60px;
width: 250px;
}
.profile .avatar {
max-width: 80px;
height: auto;
opacity: 0;
}
.profile .avatar-wrapper {
display: block;
margin: 0 0 20px 0;
-moz-border-radius: 50px;
-webkit-border-radius: 50px;
border-radius: 50px;
background-position: center center;
background-size: 80px 80px;
width: 80px;
height: 80px;
}
.profile .username {
text-decoration: none;
color: rgb(68, 68, 68);
font-family: 'Lato', sans-serif;
font-weight: normal;
}
.profile .Med.bio {
font-size: 14px;
line-height: 1.5em;
font-family: 'Lato', sans-serif;
}
.profile .Tiny.location {
color: #999;
font-family: 'Lato', sans-serif;
}
.profile p {
margin: 0.2em 0;
color: rgb(68, 68, 68);
}
.profile .twitter-handle a {
background-image: url(../images/twitter-bird-black-bgs.png);
background-repeat: no-repeat;
display: block;
opacity: 0.2;
background-position: top left;
width: 26px;
height: 26px;
background-size: 26px 26px;
-webkit-transition: all 0.2s ease-in-out;
-moz-transition: all 0.2s ease-in-out;
-o-transition: all 0.2s ease-in-out;
transition: all 0.2s ease-in-out;
margin: 10px 0;
}
.profile .twitter-handle a:hover {
opacity: 0.6;
}
.profile .twitter-handle span {
display: none;
}
.mini-profile {
padding: 30px 0;
margin: 20px 0 0 0;
border-top: 1px solid #FFF;
border-bottom: 1px solid rgb(214, 214, 214);
-moz-box-shadow: 0 1px 0 rgb(255, 255, 255), 0 -1px 0 rgb(214, 214, 214);
-webkit-box-shadow: 0 1px 0 rgb(255, 255, 255), 0 -1px 0 rgb(214, 214, 214);
box-shadow: 0 1px 0 rgb(255, 255, 255), 0 -1px 0 rgb(214, 214, 214);
}
.mini-profile .avatar-wrapper, .mini-profile .avatar {
max-width: 50px;
height: auto;
display: inline-block;
vertical-align: top;
}
.mini-profile .avatar-wrapper {
float: left;
}
.mini-profile .profile-about {
display: block;
padding-left: 20px;
margin-left: 50px;
}
.mini-profile .username, .mini-profile .bio, .mini-profile .twitter-handle {
margin: 0;
padding: 0;
}
.mini-profile .username {
font-weight: bold;
line-height: 1em;
padding-bottom: 6px;
}
.mini-profile .twitter-handle {
font-weight: bold;
}
.mini-profile .location {
display: none;
}
.mini-profile .twitter-handle a {
background-image: url(../images/twitter-bird-light-bgs.png);
opacity: 1;
}
.jplnav {
list-style-type: none;
margin: 0;
padding: 0 0 0 60px;
}
.jplnav li a {
display: block;
margin: 0;
}
.jplnav a {
text-decoration: none;
display: block;
padding: 5px 0;
}
.jplnav a:hover {
text-decoration: none;
color: rgb(111, 152, 190);
}
.jplnav li.active a {
color: #CCC;
}
.section-trigger {
background-color: transparent;
}
ul.sections {
margin: 0;
padding: 0;
}
.menu, .expand-profile {
width: 44px;
display: none;
position: absolute;
right: 10%;
top: 30px;
opacity: 0.3;
text-align: center;
background-color: rgb(179, 179, 179);
-moz-border-radius: 8px;
-webkit-border-radius: 8px;
border-radius: 8px;
padding-top: 10px;
padding-bottom: 6px;
color: #000;
}
.menu:hover, .expand-profile:hover {
cursor: pointer;
opacity: 0.5;
}
.close-menu {
font-family: Arial !important;
font-size: 50px;
display: none;
line-height: 30px;
vertical-align: middle;
}
.wedge {
height: 4px;
margin: 0 8px 5px 8px;
background-color: #000;
display: block;
-moz-border-radius: 2px;
-webkit-border-radius: 2px;
border-radius: 2px;
}
.expand-profile {
right: 25%;
font-family: Georgia, Roboto, "Droid Serif", serif;
font-style: italic;
font-weight: bold;
font-size: 36px;
line-height: 0.8em;
}
.pager-footer {
margin: 40px 0;
padding: 10px 0;
}
.pager {
}
.pager span, .pager a {
display: inline-block;
padding: 2px;
}
.Loading {
text-align: center;
padding: 30px;
display: block;
margin-top: -50px;
margin-left: -1px;
}
.Loading img {
display: none;
margin: 0 auto;
}
h1 {
color: #202020;
font-size: 52px;
line-height: 1em;
font-weight: 300;
font-family: 'Lato', sans-serif;
text-transform: uppercase;
text-shadow: 0 2px 0 #FFF;
}
h1 a {
color: inherit;
}
h2, h3, h4, h5, h6 {
color: #202020;
font-family: 'Lato', sans-serif;
font-weight: bold;
}
.jplnav a {
font-size: 18px;
color: #91b6e4;
}
.jplnav li a {
font-family: 'Lato', sans-serif;
}
.Lrg {
font-size: 20px;
color: #202020;
font-weight: bold;
}
.Lrg a {
color: inherit;
}
.Med {
font-size: 16px;
line-height: 1.8em;
color: rgb(68, 68, 68);
}
.Sml {
font-size: 13px;
line-height: 1.4em;
color: rgb(68, 68, 68);
}
.Tiny {
font-size: 12px;
font-weight: normal;
color: rgb(68, 68, 68);
}
a {
color: rgb(96, 167, 207);
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
.post-header {
padding: 0 0 30px 0;
}
.post-header h1 {
margin: 0 0 10px 0;
padding: 0;
}
.post-date {
padding-top: 0;
margin-bottom: 0;
display: block;
color: #bfbfbf;
}
.entry {
padding: 0;
}
.entry span {
background-color: transparent !important;
}
.entry img {
max-width: 520px;
height: auto;
}
.entry blockquote {
font-style: normal;
margin: 10px 0;
padding: 20px;
background-color: #FFF;
display: block;
}
.entry blockquote.quote {
border-left: 0;
font-size: 1.2em;
color: #202020;
}
.entry blockquote.quote:before {
content: "“";
font-family: Georgia;
font-size: 40px;
line-height: 30px;
}
.post-footer {
padding: 0 0 50px 0;
margin-bottom: 50px;
border-bottom: 1px solid rgb(214, 214, 214);
-moz-box-shadow: 0 1px 0 rgb(255, 255, 255);
-webkit-box-shadow: 0 1px 0 rgb(255, 255, 255);
box-shadow: 0 1px 0 rgb(255, 255, 255);
}
.post-origin {
padding-bottom: 6px;
margin: 20px 0 20px 0;
display: block;
}
.image-block {
vertical-align: bottom;
padding: 10px;
}
.image-block img {
opacity: 0;
}
.image-block a {
display: inline-block;
}
.photo-detail {
-moz-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
-webkit-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
display: inline-block;
margin: 0 auto;
padding: 0;
}
body.dribbble .postcont.main-content-wrapper, body.dribbble .main-content-wrapper {
margin-top: 0;
}
body.dribbble-shot .entry {
max-width: none;
text-align: center;
}
body.dribbble-shot .post-header h1 {
width: 400px;
margin: 0 auto;
}
body.dribbble-shot .photo-detail {
/* width: 400px; */
}
body.dribbble-shot .suppliment-group {
text-align: left;
width: 400px;
margin: 0 auto;
padding-top: 40px;
}
body.dribbble-shot .suppliment {
display: block;
margin-top: 6px;
}
body.dribbble-shot .mini-profile {
display: none;
}
body.flickr .postcont.main-content-wrapper, body.flickr .main-content-wrapper {
/* margin-top:0; */
}
body.flickr-photo .main-content-wrapper {
width: auto;
position: relative;
padding-top: 20px;
}
body.flickr-photo .sidebar {
width: auto;
position: relative;
float: none;
border-left: none;
padding: 30px 0;
}
body.flickr-photo .jplnav {
margin-left: 90px;
}
body.flickr-photo .jplnav li {
display: inline-block;
margin-right: 10px;
}
body.flickr-photo .profile {
width: auto;
padding: 10px 60px;
}
body.flickr-photo .profile .avatar-wrapper {
float: left;
width: 50px;
height: 50px;
background-size: 50px 50px;
}
body.flickr-photo .profile-about {
margin-left: 90px;
display: none;
}
body.flickr-photo .section-trigger {
display: none;
}
body.flickr-photo .post-header {
margin-top: 0;
padding-top: 50px;
}
body.flickr-photo .breadcrumb {
line-height: normal;
padding-top: 0;
margin-bottom: 10px;
color: #CCC;
}
body.flickr-photo .breadcrumb a {
color: inherit;
}
body.flickr-photo .post-header h1 {
max-width: none;
font-size: 38px;
margin: 0 0 0px 0;
color: rgb(185, 185, 182);
max-width: 600px;
}
body.flickr-photo .entry {
max-width: none;
}
body.flickr-photo .entry .description {
max-width: 600px;
margin-top: 50px;
}
body.flickr-photo .photo-detail {
text-align: center;
}
body.flickr-photo .entry img {
max-width: 100%;
width: auto;
margin: 0 auto;
}
body.flickr-photo .mini-profile {
display: none;
}
body.flickr-photo .post-footer {
border-bottom: 0;
margin-top: 50px;
max-width: 600px;
}
body.flickr-photoset .post-header {
padding: 20px 0 0 10px;
}
.video-block {
margin: 10px 0;
}
/* hide hastags */
.ot-hashtag {
display: none;
}
.link a {
background-color: rgb(224, 240, 255);
display: inline-block;
padding: 4px 8px;
}
.map {
display: block;
margin: 10px 0;
}
.googleplus-post .post-footer {
border-bottom: none;
padding-top: 50px;
}
/*
* Etsy
*/
body.etsy-section .post-header {
padding: 20px 0 0 10px;
}
body.etsy-listing .post-header {
padding: 60% 50px 0 0;
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
}
body.etsy-listing .post-header h1 {
background-color: rgba(255,255,255,0.9);
display: inline-block;
padding: 30px 30px 30px 44px;
margin: 0;
}
body.etsy-listing .post-header p.Lrg {
background-color: rgba(255,255,255,0.8);
display: inline-block;
padding: 4px 12px;
margin: 0;
height: auto;
line-height: 1em !important;
margin: 0;
display: inline-block;
vertical-align: bottom;
}
body.etsy-listing .photo-detail {
margin-bottom: 20px;
}
body.instagram-photo .mini-profile {
display: none;
}
.postcont.achievement, .postcont.portfolio, rticle.reviews {
margin-bottom: 50px;
}
.postcont.achievement header, .postcont.portfolio header, .postcont.reviews header {
padding-bottom: 0;
}
.angellist-grid, .angellist-grid ul {
list-style-type: none;
margin: 0;
padding: 0;
}
.angellist-grid-content {
display: inline-block;
margin: 0 6px 0 0;
}
.angellist-grid-content .angellist-company-name a:before {
content: " / ";
rgb(78, 78, 78);
}
.angellist-grid-content:first-child .angellist-company-name a:before {
content: "";
}
.angellist-company-image {
display: none;
}
.angellist-company-concept {
display: none;
}
.angellist-grid-content:hover .angellist-company-concept {
display: block;
position: absolute;
}
.angellist-grid-content .angellist-company-concept {
position: absolute;
background-color: #FFF;
padding: 20px 20px 5px 20px;
width: 200px;
margin-left: -65px;
margin-top: 10px;
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
opacity: 0;
display: block;
visibility: hidden;
white-space: normal;
text-align: center;
-moz-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
-webkit-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}
.angellist-company-image-popup {
width: 60px;
height: 60px;
display: block;
margin: 0 auto;
-webkist-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
background-position: center center;
background-size: 60px 60px;
background-repeat: no-repeat;
background-color: #FFF;
padding: 6px;
-moz-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
-webkit-box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}
.angellist-company-image-popup img {
display: none;
}
.angellist-grid-content .angellist-company-concept:after {
top: -5px;
right: 110px;
bottom: auto;
left: auto;
border-width: 0 5px 5px;
border-color: rgb(255,255,255) transparent;
content: "";
position: absolute;
border-style: solid;
display: block;
width: 0;
}
.angellist-company-concept p.Sml {
color: #202020;
}
.angellist-grid-content:hover .angellist-company-concept {
visibility: visible;
opacity: 1;
margin-top: 0;
-webkit-transition: opacity 0.2s ease-in-out 0.3s, margin-top 0.2s ease-in-out 0.3s;
-moz-transition: opacity 0.2s ease-in-out 0.3s, margin-top 0.2s ease-in-out 0.3s;
-o-transition: opacity 0.2s ease-in-out 0.3s, margin-top 0.2s ease-in-out 0.3s;
transition: opacity 0.2s ease-in-out 0.3s, margin-top 0.2s ease-in-out 0.3s;
}
.github-languages {
margin-bottom: 50px;
margin-top: 0;
}
.github-social-stats {
list-style-type: none;
margin: 0;
padding: 0;
}
.github-social-stats li {
float: left;
margin-right: 10px;
}
.github-social-stats span.Lrg {
font-weight: bold;
font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial;
display: block;
}
.portfolio .post-header h1, .github-languages .post-header h1 {
font-size: 1.4em;
}
.portfolio .post-header, .github-languages .post-header, .github-repo .post-header {
padding-bottom: 0;
}
.github-repo .post-header h1 {
font-size: 1.8em;
}
.github-repo .entry p {
margin: 0;
padding: 0;
}
.github-starred {
font-size: 0.8em;
}
.github-starred .Lrg {
font-size: 1em;
}
.github-main-language {
font-size: 0.8em;
}
.github-main-language .Lrg {
font-weight: bold;
font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial;
font-size: 1em;
}
body.feed .entry h1 {
text-shadow: none;
font-size: 1.2em;
text-transform: capitalize;
color: #202020;
font-family: 'Lato', sans-serif;
font-weight: bold;
}
.feed .entry img {
max-width: 100%;
height: auto;
}
body.page h1 {
margin: 0 0 10px 0;
padding: 0;
}
/* * * * * * * * * * * * * * * * * * * * * * * *
* Responsive Styles
* * * * * * * * * * * ** * * * * * * * * * * * */
/* Large desktop */
#media (min-width: 1200px) { /* */
}
/* Portrait tablet to landscape and desktop */
#media (min-width: 768px) and (max-width: 979px) { /* */
}
/* Shrink Navigation */
#media (max-height: 798px) {
/*
*
*
* Vertical Responsive Profile
*
*
*/
.profile {
padding-top: 20px;
padding-bottom: 20px;
}
.profile .avatar-wrapper {
/* display: none; */
}
/*
*
*
* Vertical Responsive Site Navigation
*
*
*/
.jplnav a {
font-size: 18px;
}
.jplnav {
margin: 40px 0 0 0;
}
.jplnav li {
padding: 15px 0;
}
.jplnav a {
padding: 0;
}
}
/* Landscape phone to portrait tablet */
#media (max-width: 767px) {
.sidebar {
float: none;
width: 100%;
overflow-x: auto;
overflow-y: auto;
background-color: #fff;
position: relative;
border: 0;
padding: 20px 0;
}
.main-content-wrapper {
margin: 0;
padding: 60px 60px 200px 60px;
position: relative;
width: auto;
}
.postcont.main-content-wrapper, .main-content-wrapper {
margin: 0;
}
/*
*
*
* Responsive: Site Navigation
*
*
*/
.jplnav {
padding: 10px 0;
display: none;
}
.jplnav li {
display: block;
padding: 0;
margin: 0;
margin-left: 10%;
margin-right: 10%;
text-align: left;
}
.jplnav a {
padding: 10px;
font-size: 20px;
border-top: 1px solid rgba(0,0,0,0.1);
}
/*
*
*
* Responsive: Sub Navigation
*
*
*/
.section-trigger {
margin: 0;
list-style-type: none;
position: relative;
top: auto;
left: auto;
right: auto;
border-bottom: 0;
-webkit-box-shadow: none;
-moz-box-shadow: none;
-o-box-shadow: none;
box-shadow: none;
padding: 10px;
text-align: left;
z-index: 99;
}
.sections {
text-align: center;
position: relative;
}
.section-trigger > ul.sections {
display: block;
opacity: 1;
filter: alpha(opacity=1);
position: relative;
bottom: auto;
margin: 0;
padding: 0;
}
.sections li {
display: block;
margin: 0 0 8px 0;
padding: 0;
}
.sections a {
display: block;
padding: 10px;
margin: 10px;
border: 3px solid rgba(0,0,0,0.1);
text-align: center;
font-weight: bold;
}
.section-block {
float: none;
margin: 0;
padding: 0;
}
/*
*
*
* Responsive: Image Block Styling
*
*
*/
.image-block {
vertical-align: bottom;
padding: 10px;
}
.image-block img {
opacity: 1;
display: block !important;
width: auto !important;
max-width: 100% !important;
min-width: 100% !important;
height: auto !important;
}
.image-block a {
display: block;
}
/*
*
*
* Responsive: Single Photo image styling
*
*
*/
.photo-detail {
-moz-box-shadow: none;
-webkit-box-shadow: none;
box-shadow: none;
display: block;
margin: 0 auto;
border: 0;
}
.photo-detail img {
width: 100%;
height: auto;
}
/*
*
*
* Responsive Pager
*
*
*/
.pager-footer {
margin: 25px 10px 50px 10px;
padding-top: 25px;
border-top: 1px solid #000;
}
.pager {
}
.pager span, .pager a {
display: block;
padding: 10px;
margin: 10px;
border: 3px solid rgba(0,0,0,0.1);
text-align: center;
font-weight: bold;
}
.menu, .expand-profile {
display: block;
}
/*
*
*
* Responsive: Generic Font Treatments
*
*
*/
.Lrg {
font-size: 24px;
}
.Med {
font-size: 18px;
}
.Sml {
font-size: 18px;
}
/*
*
*
* Responsive: User Profile
*
*
*/
.profile {
padding: 0;
margin: 0 0 20px 0;
float: none;
width: auto;
}
.profile .avatar-wrapper {
display: block;
margin-top: 20px;
margin-left: 10%;
background-repeat: no-repeat;
background-size: 60px 60px;
width: 60px;
height: 60px;
}
.profile .avatar {
max-width: 60px;
height: auto;
display: block;
}
.profile p {
margin: 0 auto;
padding: 0;
width: 80%;
}
.profile p.username {
margin: 10% 0 0 10%;
line-height: normal;
display: inline-block;
}
.profile .Med.bio {
font-size: 22px;
line-height: 1.5em;
color: #d4d4d4;
}
.profile .twitter-handle a {
margin: 0;
opacity: 0.3;
background-size: 36px 36px;
width: 36px;
height: 36px;
position: absolute;
right: 40%;
top: 34px;
}
.profile .twitter-handle span {
display: none;
}
.profile p.username, .profile .bio, .profile .location, .profile p {
display: none;
}
.profile p.twitter-handle {
display: block;
}
/*
*
*
* Responsive Loading image
*
*
*/
.Loading {
left: 0;
right: 0;
top: 50%;
display: block;
background-color: rgba(255, 255, 255, 0.9);
}
.Loading img {
display: block;
margin: 0 auto;
}
/*
*
*
* Responsive: Post Styling
*
*
*/
.post-header {
padding: 10% 10% 0 10%;
}
.post-header h1 {
word-break: normal;
font-size: 30px;
}
.post-footer {
padding: 0 10% 10% 10%;
}
.entry {
padding: 0 10% 10% 10%;
}
.entry img {
max-width: 100%;
}
.entry {
}
iframe, embed, object {
max-width: 260px;
}
/*
*
*
* Responsive: Flickr, Dribbble Styling Overrides
*
*
*/
body.dribbble-shot .entry, body.flickr-photo .entry {
padding: 10px;
}
body.dribbble-shot .post-header, body.flickr-photo .post-header {
margin-top: 0;
padding-top: 10px;
}
body.dribbble-shot .post-header h1, body.flickr-photo .post-header h1 {
opacity: 1;
font-size: 1em;
}
/*
*
*
* Flickr Responsive Profile
*
*
*/
body.flickr-photo .sidebar {
padding: 0;
}
body.flickr-photo .jplnav {
margin-left: 0;
}
body.flickr-photo .jplnav li {
display: block;
margin-right: 0;
}
body.flickr-photo .profile {
padding: 0;
}
body.flickr-photo .profile .avatar-wrapper {
float: none;
background-size: 60px 60px;
width: 60px;
height: 60px;
}
body.flickr-photo .profile-about {
display: block;
padding: 0;
}
.profile .profile-about {
display: block;
padding: 0;
}
/*
*
*
* Responsive: Etsy Overrides
*
*
*/
body.etsy-listing .post-header {
padding: 400px 0 0 0;
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
}
body.etsy-listing .post-header h1 {
display: block;
padding: 20px 10% 20px 10%;
margin: 0;
font-size: 20px;
line-height: 1.3em !important;
text-shadow: none;
background-color: rgb(255,255,255);
}
body.etsy-listing .post-header p.Lrg {
background-color: rgb(255,255,255);
display: inline-block;
padding: 4px 12px;
margin: 0;
height: auto;
line-height: 1em !important;
margin: 0;
display: inline-block;
vertical-align: bottom;
}
}
/* Landscape phones and down */
#media (max-width: 480px) {
.main-content-wrapper {
margin: 0;
padding: 0 0 200px 0;
position: relative;
width: auto;
}
/*
*
*
* Responsive: Section Navigation
*
*
*/
.sections a {
display: block;
padding: 0 4px 4px 0;
color: inherit;
font-size: 20px;
}
/*
*
*
* Responsive: User Profile Navigation
*
*
*/
.expand-profile {
right: 30%;
}
.profile .twitter-handle a {
right: 50%;
}
/*
*
*
* Responsive: Generic Font Treatments
*
*
*/
.Lrg {
font-size: 24px;
}
.Med {
font-size: 18px;
}
.Sml {
font-size: 14px;
}
}

Answer 1

This has to go in your head element
<meta name="viewport" content="width=device-width, initial-scale=1">
You can read more here
https://developer.mozilla.org/en-US/docs/Mozilla/Mobile/Viewport_meta_tag

Answer 2

<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="apple-mobile-web-app-capable" content="yes">
Add this within your head tag.

Answer 3

Add this to your <head> section:
<meta name="viewport" content="width=device-width">