引导为什么我的页面在我的页面右侧有一个白条

Question

我试图让我的引导登陆页面响应所有的显示，所以我已经开始使用媒体查询来适应iPhone、iPads和其他设备上的页面，但是当我使用手机时，网页的右边有一个白色的条，整个模板也被显示出来，就像放大和一些h1标签在右边的白条上一样。我会给你看我的代码，希望有人能帮我，我一整天都被困在这里。我需要帮助。我是前端开发的新手，所以不要激动地给我一些建议。

<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边溢出。2个备选方案

1. 您可以使用DevTools查找故障元素并修复其宽度或其他行为(填充等)；
2. 您可以使问题安静下来，并将overflow设置为隐藏的，并希望没有其他任何突破，您可以将overflow设置为仅用于电话的溢出-x。

Answer 2

Bootstrap 4.3+没有手动设置每个断点的字体大小，而是引入了名为响应字型尺寸的新功能。

您可以按照指令打开它，这样您就不必编写那么多媒体查询。事实上，我强烈建议你学习SASS/SCSS，如果你是新手的话。您可以通过SASS/SCSS定制Bootstrap，这样就更容易了。关于文档有一个完整的关于主题化的部分。

此外，您不应该需要带有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> -->

我只是觉得有很多地方你可以清理/改进你的代码。