主DIV CSS不能正常工作

我正在構建一個響應站點，主DIV CSS在桌面大小時工作，但當我調整到移動大小時，主DIV中的CSS停止工作。可能它與@media屏幕無法正常工作有關？我一直被困在這裏兩個月，現在找不到問題。主DIV CSS不能正常工作

HTML CSS &：

/* Body styling for browser */ 
 
    /* HTML position/height/width */ 
 
     html { 
 
      position:relative; 
 
      height:100%; 
 
      width:100%; 
 
     } 
 
     
 
    /* Body height/margin/width/position thing */ 
 
     body { 
 
      position:absolute; 
 
      min-width:100%; 
 
      min-height:100%; 
 
      margin: 0px; 
 
     } 
 
     
 
/* Main */ 
 
    /* Main margin */ 
 
     @media screen and (min-width: 481px) { 
 
      div#main { 
 
       margin-bottom: 147px; 
 
       margin-left: 5px; 
 
       margin-right: 5px; 
 
       position: relative; 
 
       margin-top: 4px; 
 
      } 
 
      
 
     /* Main text styling paragraph */ 
 
      div#main p { 
 
       link-decoration: underline; 
 
       color: #000000; 
 
       font-family: "verdana",geneva,sans-serif; 
 
       margin-top: 4px; 
 
       text-align: left; 
 
      } 
 
/* Main Mobile */ 
 
    @media screen and (max-width: 481) { 
 
     /* Main margin mobile */ 
 
      div#main { 
 
       margin-bottom: 147px; 
 
       margin-left: 5px; 
 
       margin-right: 5px; 
 
       margin-top: 2px; 
 
       position: relative; 
 
      } 
 
     /* Main text styling paragraph mobile */ 
 
      div#main p { 
 
       link-decoration: underline; 
 
       color: #000000; 
 
       margin-top: 4px; 
 
       text-align: left; 
 
       font-family: "verdana",geneva,sans-serif; 
 
      } 
 
    } 
 
/* Other */ 
 
    ::selection { 
 
     background: #c1c1c1; 
 
    } 
 
    
 
    ::-moz-selection { 
 
     background: #c1c1c1; 
 
    }

<!DOCTYPE html> 
 
<html lang="en-us"> 
 
<head> 
 
    <meta charset="utf-8"/> 
 
    <link rel="stylesheet" type="text/css" href="/ncore/style/style.css"> 
 
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> 
 
    <link rel="icon" type="image/ico" href="/ncore/style/favicon.ico"> 
 
    <title> 
 
    <?php 
 
     include "./config.php"; 
 
     echo $name; 
 
    ?> 
 
    - Home 
 
    </title> 
 
</head> 
 
<body> 
 
    <?php 
 
    include 'config.php'; 
 
    ?> 
 
    <div id="page"> 
 
     <div id="mbar"> 
 
      <?php 
 
      include './bar/mbar/mbar.php'; 
 
      ?> 
 
     </div> 
 
     <div id="main"> 
 
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus bibendum maximus est, non gravida ligula pretium ut. Maecenas eget fringilla ligula. Nulla imperdiet velit sit amet egestas faucibus. Donec sodales at nibh ac imperdiet. Donec tristique mollis tempus. Morbi ac orci sed metus facilisis blandit ac ut enim. Donec sit amet blandit tortor. Nunc suscipit, lorem in tempor pulvinar, justo turpis rutrum turpis, ut aliquam nisl velit varius lorem. Nam sollicitudin, turpis in vestibulum vehicula, dui orci auctor tellus, a bibendum arcu mi consequat odio. Aliquam eget maximus mauris. Phasellus sit amet eros quis libero malesuada pulvinar. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Morbi eu placerat turpis. Phasellus aliquet laoreet ipsum, sit amet pellentesque lectus vestibulum in. Nam euismod, lorem vitae vulputate vulputate, est lectus auctor arcu, eu varius neque tortor ac lorem. Donec semper id metus nec egestas.</p> 
 
     </div> 
 
     <div id="cbar"> 
 
      <?php 
 
      include './bar/cbar/cbar.php'; 
 
      ?> 
 
     </div> 
 
     <div id="abar"> 
 
      <?php 
 
      include './bar/abar/abar.php'; 
 
      ?> 
 
     </div> 
 
     <div id="ebar"> 
 
      <?php 
 
      include './bar/ebar/ebar.php'; 
 
      ?> 
 
     </div> 
 
    </div> 
 
</body> 
 
</html>

我以前問過這個問題，但我不太清楚。

來源

2017-08-28 Shmotten

@media screen and (max-width: 481) {

應該

@media screen and (max-width: 481px) {

不要忘記你的單位！

此外，你應該確保你的規則不重疊...最大481px和最小481px將使兩個規則正好在481有效。你應該有你的最大低於1px ...或者你的分鐘高1px 。

來源

2017-08-28 15:05:57 Salketer

非常感謝！我現在感覺很蠢，哈哈。我還將其中一個@media屏幕設置爲480px。 – Shmotten

主DIV CSS不能正常工作

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