Question

我正在尝试使我的网站在没有Bootstrap的情况下具有响应能力，但是当我使用@Media查询标记时，它不起作用-没有任何变化。

............................................... ..........................

这是我的代码：

body {
  font-family: "Oswald",Helvetica,Arial,sans-serif;
  /* font-family: 'Roboto', sans-serif; */
  /* overflow-y: hidden; */
  /* background-image: url("https://preview.redd.it/qmfjuz883g7z.png?width=1024&s=c5e92c9c5e20b147ef13daf77eab47dae203496f"); */
  background-color: #e5e5e5;
  /* background-color: #222831; */
  margin: 0px;
}
html {
  scroll-behavior: smooth;
}

h1 {
    margin: 0;
}

.Terms:hover {
  font-weight: bold;
  text-decoration: underline;
}

.Terms {
  text-decoration: none;
  color: white;
}

.SmallGamesLogoWhite:hover {
  transform: scale(1.1);
}

.SocialMedia {
  margin-top: 85px !important;
  height: 60px !important;
}

.Company_Text_Info {
  color: #fafafa;
  width: 500px;
  margin-top: 30px;
  margin-left: 20px;
}

.EmailIcon_Link:hover {
  text-decoration: underline;
  font-weight: bold;
}

.EmailIcon_Link {
  margin-left: 20px;
  color: #fafafa;
  text-decoration: none;
}

.EmailIcon_Image {
  margin-top: 10px;
  margin-left: 20px;
  height: 20px;
}

.SmallGamesLogoWhite {
  margin-top: 30px;
  margin-left: 20px;
  /* margin-right: 150px; */
  height: 35px;
}

#footer {
  background-color: #393e46;
  height: 400px;
}


#logo {
  padding: 20px 20px;
  top:0;
  left:0;
}


.SmallGameStudio_footer {
  margin-top: 350px;
}

#video-content {
  margin-top: 100px;
  margin-bottom: 100px;
}

.video_h1 {
  margin-top: 100px;
}

.video_p {
  font-size: 15px;
  width: 450px;
  text-transform: uppercase;
}

.CenteredText{
  margin-top: 35px;
  color: white;
}

/* .CenteredText_Span{
  color: white;
  font-weight: bold;
} */

.NavbarLinks_Video{
  margin-right: 450px;
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  text-decoration: none;
  word-spacing: 30px;
  font-size: 25px;
  color: black !important;
}

::-moz-selection { /* Code for Firefox */
  color: white;
  background: #ffe4e4;
}

::selection {
  color: white;
  background: #ffe4e4;
}

.NavbarLinks_Games{
  margin-right: 635px;
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  text-decoration: none;
  word-spacing: 30px;
  font-size: 25px;
  color: black !important;
}

#LearnMore {
    margin-top: 150px;
    margin-bottom: 300px;
    color: white;
}

.games_image:hover {
  cursor: pointer;
  transform: scale(1.1);
}

#games {
  background-color: #393b44;
  margin: 0;
}

.games_content_fig_desc {
  color: white !important;
  width: 250px;
  margin-top: 15px;
}

.games_content {
  display: flex;
  flex-wrap:wrap;
}

.games_content_fig {
  margin-left: 55px;
  color: black;
  color: #ffec00;
}

.download_button:hover {
  transform: scale(1.1);
}

.download_button {
  background-color: #ff7171; /* Default Website Color Scheme */
  margin: 25px 55px;
  border: none;
  color: white;
  padding: 15px 32px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  border-radius: 5px;
  font-size: 16px;
}

.games_image {
  height: 200px;
  margin: 25px 25px;
  margin-bottom: 25px;
  border-radius: 50px;
}

@media (max-width: 980px) {
.games_image {
  height: 200px;
  margin: 25px 25px;
  margin-bottom: 25px;
  border-radius: 50px;
  }
}

#background_grass {
  background-image: url("https://preview.redd.it/qmfjuz883g7z.png?width=1024&s=c5e92c9c5e20b147ef13daf77eab47dae203496f");
  /* margin-top: 45px;
   padding: 5px; */
  height: 750px;
}

#LearnMore:hover{
    color: white;
}

.Copyright_Text {
  margin-bottom: 5px;
  color: white;
}
.LearnButton:hover {
  color: white;
  background-color: #d9adad;
}

.LearnButton {
  width: 150px;
}

.FooterLinks:hover {
  font-weight: bold;
  text-decoration: underline;
}

#FooterLinks {
    word-spacing: 30px;
    font-size: 35px;
    padding-top: 50px;
}

.FooterLinks {
  color: white;
  text-decoration: none;
}

.NavbarLinks_Home{
  margin-right: 800px;
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  text-decoration: none;
  word-spacing: 30px;
  font-size: 25px;
  color: black !important;
}

.NavbarLinks_Contact {
  margin-right: 300px;
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  text-decoration: none;
  word-spacing: 30px;
  font-size: 25px;
  color: black !important;
}

.LearnMore_Social {
  margin-right: 600px;
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  text-decoration: none;
  word-spacing: 30px;
  font-size: 25px;
  color: black !important;
}

.ArrowUpIcon {
  height: 45px;
}

.LearnMore_P {
  font-size: 20px;
  width: 500px;
}

.LearnMore_Desc:hover {
  background-color: #d9adad; /* Default Website Hover Color Scheme*/
}

.LearnMore_H1 {
  font-size: 35px;
}

.LearnMore_Desc {
  background-color: #ff7171; /* Default Website Color Scheme */
  margin-top: 25px;
  margin-right: 50px;
  border: none;
  color: white;
  padding: 10px 20px;  /* Default Padding was 15px 32px;*/
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  border-radius: 5px;
  font-size: 16px;
}

.NavbarLinks_Home:hover{
  color: white !important;
  height: 53px;
  background-color: black;
  font-weight: bold;
  text-decoration: underline;
}

.NavbarLinks_Contact:hover{
  color: white !important;
  height: 53px;
  background-color: black;
  font-weight: bold;
  text-decoration: underline;
}

.NavbarLinks_Games:hover{
  color: white !important;
  height: 53px;
  background-color: black;
  font-weight: bold;
  text-decoration: underline;
}

.NavbarLinks_Video:hover{
  color: white !important;
  height: 53px;
  background-color: black;
  font-weight: bold;
  text-decoration: underline;
}

.GooglePlay_Icon {
  /* margin-right: 600px; */
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  word-spacing: 30px;
  font-size: 45px;
  height: 45px;
}

.itch_image:hover {
  cursor: pointer;
  transform: scale(1.1);
}

.itch_image {
  height: 50px;
  border-radius:35px;
  margin-top: 10px;
  margin-left: 20px;
}

.googleplay_image:hover {
  cursor: pointer;
  transform: scale(1.1);
}

.QuickLinks_Links:hover {
  transform: scale(1.1);
}

.QuickLinks_Links {
  color: #fafafa;
  font-size: 25px;
  position: absolute;
  top: 0;
  right: 0;
  text-decoration: none;
}

.QuickLinks {
  margin-top: 85px;
  margin-right: 550px;
}

.subscribe {
  margin-top: 85px;
  position: absolute;
  top: 0;
  right: 0;
}

input[type=text], select {
  width: 75%;
  padding: 12px 20px;
  margin: 8px 0;
  display: inline-block;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}

.subscribe_h1 {
  margin-bottom: 20px;
  color: #fafafa;
}

.subscribe_button:hover {
  transform: scale(1.1);
}

.subscribe_button {
    margin-right: 65;
    background-color: #ff7171;
    border: none;
    color: white;
    padding: 15px 20px;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    display: inline-block !important;
    border-radius: 5px;
    font-size: 16px;
}

.QuickLinks_Contant {
  margin-top: 130px;
  margin-right: 535px;
}

.QuickLinks_Games {
  margin-top: 175px;
  margin-right: 542px;
}

.QuickLinks_Videos {
  margin-top: 220px;
  margin-right: 542px;
}

.QuickLinks_Terms {
  margin-top: 265px;
  margin-right: 430px;
}

.copyright_message {
  padding-top: 3px;
  color: #fafafa;
}

.Privacy:hover {
  text-decoration: underline;
  font-weight: bold;
}


.Privacy {
  color: #fafafa;
  text-decoration: none;
}

.message_development {
  position: absolute;
  top: 0;
  right: 0;
  margin-top: 200px;
  margin-right: 100px;
  width: 500px;
  color: white;
}

.subscribe {
  margin-right: 150px;
  margin-top: 300px;
  position: absolute;
  top: 0;
  right: 0;
}

#copyright {
  height: 65px;
  background-color: #455d7a;
}

.QuickLinks_h1 {
  margin-bottom: 100px;
  /* position: absolute;
  bottom: 0;
  right: 0; */
  color: white;
}

.Logo_Header {
  margin-top: 200px;
}

.googleplay_image {
  height: 50px;
  margin-top: 10px;
  margin-left: 30px;
}

/* .Itch_Footer_Icon {
  margin-right: 600px; */
  /* margin-bottom: 20px;
  margin-top: 150px;
  border-radius: 75px;
  padding: 25px 25px;
  font-size: 45px;
  height: 45px;
} */

.GooglePlay_Footer_Icon:hover {
  transform: scale(1.1);
}

.GooglePlay_Footer_Icon {
  /* margin-right: 600px; */
  /* margin-bottom: 20px; */
  margin-top: 50px;
  padding: 25px 15px;
  font-size: 45px;
  height: 45px;
}

/* (150% zoom - Note: if the zoom is too large, it will go outside of the viewport) */
.SmallGamesLogo:hover {
  transform: scale(1.1);
}

.GooglePlay_Icon:hover {
  transform: scale(1.5);

}

.Itch_io_Icon:hover {
  transform: scale(1.5);
}

.Itch_io_Icon {
  margin-right: 150px;
  /* margin-right: 600px; */
  position: absolute;
  top: 0;
  right: 0;
  padding: 25px 25px;
  font-size: 45px;
  border-radius: 75px;
  height: 45px;
}

#container {
  width: 100%;
  max-width: 1100%;
}

#Navbar {
  /* position: fixed;
  top: 0;
  left: 0; */
  width: 100%;
  background-color: white !important;
}
.LearnButton {
  background-color: #ff7171; /* Default Website Color Scheme */
  margin-top: 25px;
  border: none;
  color: white;
  padding: 15px 32px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  border-radius: 5px;
  font-size: 16px;
}
#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background-color: white;
  color: #ff5757;
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#myBtn:hover {
  color: white !important;
  background-color: #ff5757;
}

./* Use a media query to add a break point at 800px: */
@media screen and (max-width:800px) {
  #background_grass, #Navbar, #logo, #NavLinks {
    width:100%; /* The width is 100%, when the viewport is 800px or smaller */
  }
}

/* Footer Wavy CSS */

<!DOCTYPE html>
<html>
  <head>
      <!-- Font Awesome -->
        <script src="https://kit.fontawesome.com/a779d142a2.js" crossorigin="anonymous"></script>

    <!-- StyleSheet -->
    <link rel="stylesheet" href="css/styles.css">
    <link rel="stylesheet" href="css/games.css">
    <link rel="shortcut icon" type="image/png" href="img/favicon_platformergame.png"/>

    <!-- Google Fonts -->
    <link href="https://fonts.googleapis.com/css2?family=Oswald:wght@300&display=swap" rel="stylesheet">
    <!-- <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300&display=swap" rel="stylesheet"> -->

    <!-- <meta name="viewport" content ="width=device-width,initial-scale=1,user-scalable=yes" /> -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>SmallGamesStudios</title>
  </head>
  <body>

        <div id="container">
        <div id="Navbar">
        <div id="logo">
          <!-- Make image (Logo) black -->
          <a href="index.html"><img class="SmallGamesLogo" src="img/SmallGamesLogo.png" alt="SmallGamesStudios"/></a>
            </div>
          <div id="NavLinks">
            <div class="Navbar_Links">
              <a class="NavbarLinks_Contact" href="contact.html">Contact</a>
              <a class="NavbarLinks_Games" href="games.html">Games</a>
              <a class="NavbarLinks_Video" href="videos.html">Video</a>
              <a class="NavbarLinks_Home" href="index.html">Home</a>
            </div>
            <div class="Navbar_Social">
              <a href="#"><img class="GooglePlay_Icon" src="img/GooglePlay.png" alt="Google Play Icon"/></a>
              <a href="https://smallgamesstudios.itch.io/platformergame" target="_blank"><img class="Itch_io_Icon" src="img/itch.io.png" alt="Itch.io Icon"/></a>
              <!-- <a href="#"><img class="Youtube_Icon" src="img/YoutubeLogo.png" alt="Youtube_Icon"/></a> -->
              <!-- <a class="NavSocial_Itch" href="#"><i class="fab fa-itch-io"></i></a>
              <a class="NavSocial_GooglePlay" href="#"><i class="fab fa-google-play"></i></a> -->
            </div>
          </div>

          <div id="games">
            <div class="games_content">
              <div class="PlatformerGame">
                <figure>
                <a href="https://smallgamesstudios.itch.io/platformergame" target="_blank"><img class="games_image" src="img/PlatformerGame.png" alt="dream_blast_icon"></a>
                <figcaption class="games_content_fig">Platformer Game</figcaption></a>
                <figcaption class="games_content_fig games_content_fig_desc">We just launched our first, new game! Try avoid dieing from enemies and falling! Collect coins to win, keep your score and try and win! This game is Only for Computers and PCs. Make sure to extract the file and run the exe file!</figcaption>
                <a href="games/PlatformerGame.zip"><button class="download_button" type="button" name="button">Download</button></a>
                </figure>
              </div>
              <div class="message">
                <h2 class="message_development">We are currently in development making new games! Make sure you subscribe to our Newsletter to get a notification!</h2>
                <div class="subscribe">
                  <form action="https://formspree.io/maypgwbg" method="post">
                    <input class="subscribe-input" placeholder="Your Email" type="text" name="_replyto"/>
                      <button class="subscribe_button" type="submit">Send</button>
                  </form>
                </div>
              </div>
              <!-- <div class="angry_birds">
                <figure>
                  <a href="#"><img class="games_image" src="https://d21tktytfo9riy.cloudfront.net/wp-content/uploads/2019/01/23140919/dream_blast_icon.jpg" alt="dream_blast_icon"></a>
                <figcaption class="games_content_fig">ANGRY BIRDS DREAM BL...</figcaption>
                <figcaption class="games_content_fig games_content_fig_desc">Life is a bubble-popping dream in a new puzzle game with a gameplay style never-before-seen in an Angry Birds game.</figcaption>
                <a href="#"><button class="download_button" type="button" name="button">Download</button></a>
                </figure>
              </div>
              <div class="angrybirds_match">
                <figure>
                  <a href="#"><img class="games_image" src="https://d21tktytfo9riy.cloudfront.net/wp-content/uploads/2019/01/23140919/dream_blast_icon.jpg" alt="dream_blast_icon"></a>
                <figcaption class="games_content_fig">ANGRY BIRDS DREAM BL...</figcaption>
                <figcaption class="games_content_fig games_content_fig_desc">Life is a bubble-popping dream in a new puzzle game with a gameplay style never-before-seen in an Angry Birds game.</figcaption>
                <a href="#"><button class="download_button" type="button" name="button">Download</button></a>
                </figure>
              </div>
              <div class="angrybirds-friends">
                <figure>
                  <a href="#"><img class="games_image" src="https://d21tktytfo9riy.cloudfront.net/wp-content/uploads/2019/01/23140919/dream_blast_icon.jpg" alt="dream_blast_icon"></a>
                <figcaption class="games_content_fig">ANGRY BIRDS DREAM BL...</figcaption>
                <figcaption class="games_content_fig games_content_fig_desc">Life is a bubble-popping dream in a new puzzle game with a gameplay style never-before-seen in an Angry Birds game.</figcaption>
                <a href="#"><button class="download_button" type="button" name="button">Download</button></a>
                </figure>
              </div>
              <div class="angrybirds_evolution">
                <figure>
                  <a href="#"><img class="games_image" src="https://d21tktytfo9riy.cloudfront.net/wp-content/uploads/2019/01/23140919/dream_blast_icon.jpg" alt="dream_blast_icon"></a>
                <figcaption class="games_content_fig">ANGRY BIRDS DREAM BL...</figcaption>
                <figcaption class="games_content_fig games_content_fig_desc">Life is a bubble-popping dream in a new puzzle game with a gameplay style never-before-seen in an Angry Birds game.</figcaption>
                <a href="#"><button class="download_button" type="button" name="button">Download</button></a>
                </figure>
              </div>
              <div class="angrybirds_blast">
                <figure>
                  <a href="#"><img class="games_image" src="https://d21tktytfo9riy.cloudfront.net/wp-content/uploads/2019/01/23140919/dream_blast_icon.jpg" alt="dream_blast_icon"></a>
                <figcaption class="games_content_fig">ANGRY BIRDS DREAM BL...</figcaption>
                <figcaption class="games_content_fig games_content_fig_desc">Life is a bubble-popping dream in a new puzzle game with a gameplay style never-before-seen in an Angry Birds game.</figcaption>
                <a href="#"><button class="download_button" type="button" name="button">Download</button></a>
                </figure>
              </div> -->
            </div>
          </div>

      <button onclick="topFunction()" id="myBtn" title="Go to top"><img class="ArrowUpIcon" src="img/ArrowUpIcon.png" alt=""></button>


      <div id="footer">
        <!-- <div class="SocialMedia_Footer"> -->
        <div id="SmallGamesLogoWhite Company_Info SocialFooter_Links">
          <a href="index.html"><img class="SmallGamesLogoWhite" src="img/SmallGamesLogoWhite.png" alt="SmallGamesStudiosFooter"/></a>
          <p class="Company_Text_Info">
            SmallGameStudios is a small mobile and PC/Laptop gaming company. Founded in 2020, SmallGameStudios has released some games. Several fun games. We are here to do the best work to entertain people worldwide and make games that we want to show to our friends. Join us on this new journey and lets connect the world through amazing games made with pride and passion.
          </p>
          <p class="Email"><img class="EmailIcon_Image" src="img/Email_Icon.png" alt="Email_Icon"><a class="EmailIcon_Link" href="contact.html">abdulfareed454@gmail.com</a></p>
          <a href="https://smallgamesstudios.itch.io/platformergame" target="_blank"><img class="itch_image" src="img/itch.io.png" alt="itch.io-logo"></a>
          <a href="#"><img class="googleplay_image" src="img/GooglePlay.png" alt="GooglePlay-icon"></a>
        </div>
        <!-- <div id="QuickLinks">
          <center>
            <h1 class="QuickLinks_h1">Quick Links</h1>
            <a class="QuickLinks QuickLinks_Links" href="#">Home</a>
            <a class="QuickLinks_Contant QuickLinks_Links" href="contact.html">Contact</a>
            <a class="QuickLinks_Games QuickLinks_Links" href="games.html">Games</a>
            <a class="QuickLinks_Videos QuickLinks_Links" href="videos.html">Videos</a>
            <a class="QuickLinks_Terms QuickLinks_Links" href="terms.html">Terms & Conditions</a>
          </center>
        </div> -->
        <center>
        <div id="copyright">
          <div class="copyright_message">
            <p class="copyright_message_text">© 2009 - 2020 SmallGameStudios. All rights Reserved. <a class="Privacy" href="#">Privacy policy</a>.</p>
          </div>
        </div>
        </center>
        <!-- <div>
          <h1 class="Newsletter_h1">Join Our Newsletter</h1>
          <form action="https://formspree.io/maypgwbg" method="POST">
          <input class="" placeholder="Your Email" type="text" name="_replyto">
            <button class="" type="submit">Send</button>
        </form>
        </div> -->
          </div>
        </div>

    </body>

        <!-- Script Section  -->


        <script>
      //Get the button
      var mybutton = document.getElementById("myBtn");

      // When the user scrolls down 20px from the top of the document, show the button
      window.onscroll = function() {scrollFunction()};

      function scrollFunction() {
        if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
          mybutton.style.display = "block";
        } else {
          mybutton.style.display = "none";
        }
      }

      // When the user clicks on the button, scroll to the top of the document
      function topFunction() {
        document.body.scrollTop = 0;
        document.documentElement.scrollTop = 0;
      }


      </script>

  </body>
</html>

............................................... ........................................

这是我为@media添加的代码：

 @media screen and (max-width:800px) {#background_grass, #Navbar, #logo, #NavLinks { width: 100%; } }

我在做什么错？我写错@Media查询吗？

Answer 1

快速浏览您的代码后，建议您尝试如下操作：

.games_image {
  height: 200px;
  margin: 25px 25px;
  margin-bottom: 25px;
  border-radius: 50px;
}

@media (max-width: 980px) {
.games_image {
  height: 200px;
  margin: 25px 25px;
  margin-bottom: 25px;
  border-radius: 50px;
}
}

我可能还会包括这个：

* {
 width: 100%;
 padding: 0;
 margin: 0;
}

没有快速的方法来使用媒体查询并使之响应，但是将媒体查询包装在下面并对各个部分进行调整可以很好地工作，并让您拥有想要的效果。

Answer 2

从头开始构建时，必须计划和构造HTML以使页面响应。您可以使网页响应Media Queries。但是，有成吨的屏幕和设备具有不同的高度和宽度，因此很难为每个设备创建精确的断点。对于初学者，您可以执行以下操作：

*{
    margin: 0;
    padding: 0;
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (max-width: 600px) {

    /*  Define CSS rules for mobile device here */

    .col-2,
    .col-3{
        width: 100% !important;
    }

}



/*  CSS rules for rest of the screen size  */
.col{
    min-height: 10vh;
    float: left;
    text-align: center;
}

.col-1{
    width: 100%;
    background: lime;
}

.col-2{
    width: 50%;
    background: pink;
}

.col-3{
    width: 33.3%;
    background: cyan;
}

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Responsive</title>

  <link rel="stylesheet" href="./assets/css/custom.css">
</head>
<body>
  
  <div class="col col-1">col-1</div>
  <div class="col col-2">col-2</div>
  <div class="col col-2">col-2</div>
  <div class="col col-3">col-3</div>
  <div class="col col-3">col-3</div>
  <div class="col col-3">col-3</div>

</body>
</html>

始终为Mobile First设计。“ Mobile First”是指在针对台式机或任何其他设备进行设计之前先为移动设备进行设计（这将使页面在较小的设备上显示得更快）。

您可以在Media Query移动设备内定义移动设备的CSS规则。然后修改移动设备Media Query块外相同元素的属性，以使其在其他屏幕上看起来不错。

您还可以为多个屏幕定义CSS Media Queries。例如如下：

 /* Extra small devices (phones, 600px and down) */
@media only screen and (max-width: 600px) {...}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 600px) {...}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {...}

/* Large devices (laptops/desktops, 992px and up) */
@media only screen and (min-width: 992px) {...}

/* Extra large devices (large laptops and desktops, 1200px and up) */
@media only screen and (min-width: 1200px) {...}

您可以对其进行调整，并根据需要进行调整。实验。

一些截图：

On Desktop

On Mobile

使网站适应所有屏幕尺寸

2 个答案: