引导为什么我的页面在页面右侧有一个白色条

Question

我正在努力让我的引导登录页对所有显示器都有响应，所以我已经开始使用媒体查询来适应iPhone、iPad和其他设备上的页面，但当我使用手机时，网页右侧有一个白色条，整个模板也显示为缩小，右侧白色条上有一些h1标签。我会给你看我的代码，希望有人能帮助我，我整天都被困在这里。我需要帮助。我刚开始在前端开发，所以不要犹豫给我一些建议。

<template>
   <div class="container-fluid m-0 p-0">
      <nav class="navbar navbar-expand-lg navbar-custom">
         <a class="navbar-brand " href="http://exaple.com/">
         <img src="../assets/logo.png" width="40" height="40" class="d-inline-block align-top" alt="">
         example.com
         </a>
         <div class="collapse navbar-collapse" id="navbarNav">
            <ul class="navbar-nav mr-auto">
               <li class="nav-item active">
                  <a class="nav-link" href="#sigUP" style="color:white;">Signin</a>
               </li>
               <li class="nav-item">
                  <a class="nav-link" href="#mission" style="color:white;">Mission</a>
               </li>
            </ul>
         </div>
      </nav>
      <div id="home-page" class="full-height p-4">
         <div class="container pt-500">
            <div class="row pb-6 pt-20">
               <div class="col-lg-6  my-auto ">
                  <div class="text-right text-down mb-3 d-block d-lg-none">
                     <h1 class ="text-color text-right text-down">Hello,</h1>
                     <h1 class="display-1 text-color text-right text-down">Betatester!</h1>
                  </div>
               </div>
               <div class="col-lg-6 my-auto pt-6">
                  <div class="text-right text-down mb-3 d-none d-lg-block">
                     <h1 class ="text-color text-right text-down">Hello,</h1>
                     <h1 class="display-1 text-color text-right text-down" >Betatester!</h1>
                  </div>
               </div>
            </div>
         </div>
      </div>
      <div id="about" class="bg-light p-3 p-md-5">
       <div class="container-fluid">
         <h1 class="display-1 text-color-about text-center"  >example.com is </h1>
         <div class="row">
            <div class="col-lg">
               <h1 class="ml-md-4 mr-md-4 text-left" >
                  the socialnetwork for you
               </h1>
               <h1 class="ml-md-4 mr-md-4 text-left text-color-about_p" >Freetime</h1>
               <img src="../assets/exam1.png" height="100">
               <img src="../assets/exam1.png" height="100">
               <img src="../assets/exam1.png" height="100">
            </div>
            <div class="col-lg">
               <img src="../assets/about.png" height="300" class="m-4">
            </div>
         </div>
        </div>
      </div>
      <div id="marketplace" class=" p-4">
       <div class="container-fluid">
         <div class="row">
            <div class="col-lg">
               <img src="../assets/marketplace.png" height="400">
            </div>
            <div class="col-lg">
               <h1 class="ml-md-4 mr-md-4 text-right" >
                  <h1 class="ml-md-4 mr-md-4 text-right text-color-about_m" >MARKETPLACE</h1>
                  where you can find all you need
               </h1>
            </div>
         </div>
        </div>
      </div>
      <div id="shops" class=" p-4">
       <div class="container-fluid">
         <div class="row">
            <div class="col-lg">
               <h1 class="ml-md-4 mr-md-4 text-left" >
                  the place where you can contact your
                  <h1 class="ml-md-4 mr-md-4 text-left text-color-about_s p-4" >FAVORITE </h1>
                  <h1 class="ml-md-4 mr-md-4 text-left text-color-about_p" >STORE</h1>
               </h1>
            </div>
            <div class="col-lg">
               <img src="../assets/shop.png" height="400">
            </div>
         </div>
        </div>
      </div>
      <div id="comp" class=" p-4">
       <div class="container-fluid">
         <div class="row">
            <div class="col-lg">
               <img src="../assets/comp.png" height="400">
            </div>
            <div class="col-lg">
               <h1 class="ml-md-4 mr-md-4 text-right" >
                  be
                  <h1 class="ml-md-4 mr-md-4 text-right text-color-about_m" >COMPETITIVE</h1>
                  blablablablablablablalbalba
               </h1>
            </div>
         </div>
        </div>
      </div>
      <div id="mission" class=" p-4">
       <div class="container-fluid">
         <div class="row">
            <div class="col-lg">
               <h1 class="ml-md-4 mr-md-4 text-left" style="display: inline-block" >
                  the 
                  <h1 class="ml-md-4 mr-md-4 text-left text-color-about_s" style="display: inline-block" > MISSION </h1>
               </h1>
               <h3 class="ml-md-4 mr-md-4 text-left">
                  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed vel dolor neque. Vivamus id ultrices nunc. Proin vulputate iaculis tortor ac rhoncus. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus in lobortis diam, eu ullamcorper ante. Pellentesque sodales felis sit amet metus laoreet sodales. Proin auctor nulla vitae porta pretium. Nullam tempor blandit sem vitae finibus.
               </h3>
            </div>
            <div class="col-lg">
               <img src="../assets/mission.png" height="400">
            </div>
         </div>
        </div>
      </div>
      <div id="betatest" class=" p-3">
       <div class="container-fluid">
         <div class="row justify-content-center">
            <div class="col-lg">
            </div>
            <h1 class="ml-md-0 mr-md-0   text-center display-1">
               Why you'll be 
               <h1 class="ml-md-4 mr-md-4 text-center  text-color-about_b display-1">
                  Betatester?
               </h1>
            </h1>
         </div>
         <div class="row ">
            <div class="col-lg">
               <h1 class="ml-md-4 mr-md-4 text-center" style="font-size: 4em;">
                  be
                  <h1 class="ml-md-4 mr-md-4 text-center" style="display: inline-block; color:white;font-size: 4em;font-size: 1.2em">BETATESTER</h1>
                  helps us to make the best experience possible on example.com
               </h1>
            </div>
         </div>
        </div>
      </div>
      <div id="sigUP" class=" p-2">
       <div class="container-fluid">
         <div class="row justify-content-center pd-8">
            <div class="col-lg pd-8">
               <h1 class="ml-md-4 mr-md-4 text-center display-2">
                  Become
                  <h1 class="ml-md-4 mr-md-4 text-center text-color-about_sn display-4">
                     a BETATESTER
                  </h1>
               </h1>
            </div>
         </div>
         <div class="row justify-content-center pd-8">
            <div class="col-lg ">
               <img src="../assets/player.png">
               <div class="row justify-content-center pd-8">
                  <div class="col-lg ">
                     <a href="/#/signupPlayer" class="btn btn-primary btn-lg btn-custom align-self-end" role="button">Player</a>
                  </div>
               </div>
            </div>
            <div class="col-lg ">
               <img src="../assets/store.png">
               <div class="row justify-content-center pd-8">
                  <div class="col-lg ">
                     <a href="/#/signupStore" class="btn btn-primary btn-lg btn-customS " role="button">Store</a>
                  </div>
               </div>
            </div>
         </div>
        </div>
      </div>
      <div id="contact" class="p-5">
       <div class="container-fluid">
         <div class="row justify-content-center mt-3 mb-3">
            <div v-if="show_contact == true" class="col-lg-4" style="color:white">
               <h2>Hai una domanda?</h2>
               <p>Contact us!</p>
               <div v-if="contact_notice != ''" class="alert alert-warning">
                  there's a problem. {{contact_notice}}
               </div>
               <form @submit.prevent="sendContactMessage()">
                  <div class="form-group text-left ">
                     <input v-model="contact_email"
                        type="email"
                        class="form-control"
                        placeholder="............"
                        >
                     <textarea v-model="contact_message"
                        class="form-control mt-3"
                        placeholder="..........."
                        rows="5"
                        ></textarea>
                  </div>
                  <button type="submit" class="btn btn-primary">send</button>
               </form>
            </div>
            <div v-else>
               <h3>mail sent correctly!</h3>
               <p>thanks for contact us!.</p>
            </div>
         </div>
        </div>
      </div>
      <div id="footer" class=" p-4">
         <footer class="text-light p-4">
            <small>&copy; 2020,example</small>
         </footer>
      </div>
   </div>
</template>
<style scoped>
   #home-page {
   background-color: #ff9e0b;
   background: url('../assets/bg_mt.jpg') no-repeat center center;
   -webkit-background-size: cover;
   -moz-background-size: cover;
   -o-background-size: cover;
   background-size: cover;
   }
   #about {
   min-height: 40vh;
   }
   #contact {
   background-color: #252223;
   }
   #marketplace {
   background-color: #ff9e0b;
   }
   #comp {
   background-color: #ff9e0b;
   }
   #footer {
   background-color: #252223;
   }
   #betatest {
   background-color: #ff9e0b;
   }
   .navbar-custom { 
   background-color:  #ff9e0b; 
   } 
   /* Modify brand and text color */ 
   .navbar-custom .navbar-brand, 
   .navbar-custom .navbar-text { 
   color: white !important;
   font-size: 1.5em !important; 
   }
   .text-color{
   color:white;
   font-family: 'Mountserrat',sans-serif;
   font-weight: 600;
   }
   .text-color-about{
   color:#ff9e0b;
   font-family: 'Mountserrat',sans-serif;
   font-weight: 600;
   }
   .text-color-about_p{
   color:#ff9e0b;
   font-family: 'Mountserrat',sans-serif;
   font-weight: 800;
   font-size: 4em !important;
   }
   .text-color-about_s{
   color:#ff9e0b;
   font-family: 'Mountserrat',sans-serif;
   font-weight: 800;
   font-size: 3em !important;
   }
   .text-color-about_m{
   color: white;
   font-family: 'Mountserrat',sans-serif;
   font-weight: 600;
   font-size: 3em !important;
   }
   .text-color-about_b{
   color:white;
   font-family: 'Mountserrat',sans-serif;
   align-self: center;
   font-weight: 800;
   font-size: 2em !important;
   }
   .text-color-about_sn{
   color:#ff9e0b;
   font-family: 'Mountserrat',sans-serif;
   align-self: center;
   font-weight: 800;
   font-size: 1em !important;
   }
   .bg-primary{
   color:#ff9e0b;
   }
   .bg-imgPlayer{
   contain: url(../assets/store-02.png);
   }
   .btn-customS{
   border-radius: 1rem;
   background-color: #f23838 !important;
   }
   .btn-custom{
   border-radius: 1rem;
   background-color: #ff9e0b !important;
   }
   @media (max-width: 576px) { 
   .navbar-custom {
   width:1152px; /* .... */
   }
   .navbar-custom {
   width:1152px; /* .... */
   }
   .about {
   width:1152px; /* .... */
   }
   .home-page {
   width:1152px; /* .... */
   }
   ....
   }
@media (max-width: 375px) { 
.navbar-custom {
         width: 375px;
        
}
.about {
          width:375px; /* .... */
}
.home-page {
          width:375px; /* .... */
}
.marketplace {
          width:375px; /* .... */
}
.shop {
          width:375px; /* .... */
}
.comp {
          width:375px; /* .... */
}
.mission {
          width:375px; /* .... */
}
.betatest {
          width:375px; /* .... */
}
.sigUP {
          width:375px; /* .... */
}
.contact {
          width:375px; /* .... */
}
.footer {
          width:375px; /* .... */
}
}
</style>

Answer 1

一个或多个元素在右侧溢出。2个选项

1. 您可以使用DevTools来查找错误元素并修复其宽度或其他行为(填充等(；或

2. 你可以让问题静音，并将overflow-x设置为隐藏，希望没有其他中断[你可以设置overflow-x:仅对手机隐藏]

Answer 2

Bootstrap 4.3+引入了一项名为"响应字体大小"的新功能，而不是手动设置每个断点的字体大小。

你可以按照说明打开它，这样你就不必写那么多媒体查询了。事实上，如果你是新手，我强烈建议你学习SASS/SCSS。使用SASS/SCSS，你可以更容易地自定义引导程序。文档中有一整节是关于主题的。

此外，您永远不应该需要带有Bootstrap:的嵌套容器

<!-- <div class="container-fluid m-0 p-0"> -->
    <nav class="navbar navbar-expand-lg navbar-custom">
        ...
    </nav>
    <div id="home-page" class="full-height p-4">
        <div class="container pt-500">...</div>
    </div>
        ...
    <div id="footer" class=" p-4">
        ...
    </div>
<!-- </div> -->

我只是觉得你可以在代码中清理/改进很多地方。