屏幕较窄时按钮未对齐

Question

我想对齐按钮以使我的 Web 应用程序响应。大屏幕时按钮正确对齐：

Button correctly aligned

这是按钮未正确对齐时的截图：

Button not correctly aligned

这是示例：

  body{
    display: block !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  #message_bienvenue{
    margin: 10px;
    text-align: center;
    width: 100%;
  }
  
  #bouton_mission{
    margin: 0 auto;
  }
  
  #livraison_chauffeur{
    margin: 0 auto;
    padding-top: 20px;
    width: 90%;
  }
  
  .container-fluid{
    margin-top: 70px !important;
  }

  /* BOUTON */
  .btn-circle.btn-xl {
    position: relative;
    width: 70px;
    border-radius: 45px;
    font-size: 34px;
    padding: 0px;
    margin: 5px
  }
  
  .btn-circle.btn-xl img{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
  }
  
  .btn-circle {
    width: 30px;
    height: 30px;
    padding: 6px 0px;
    border-radius: 15px;
    text-align: center;
    font-size: 12px;
    line-height: 1.42857;
    background-color: rgba(255, 255, 255, 0);
  }
  
  .text-button{
    margin-top: 40px;
  }
  
  .text-button label{
    font-size: 11px;
  }
  
  .block-mission{
    text-align: center;
  }
  
  .block-mission label{
      margin-top: 20px;
  }
  
  .btn-1 {
      background-image: url("https://pngimage.net/wp-content/uploads/2018/06/icon-ok-png-2.png");
      background-size: contain;
      background-repeat: no-repeat;
      width: 40px;
      height: 40px;
  }
  
  .btn-2 {
      background-image: url("https://pngimage.net/wp-content/uploads/2018/06/icon-ok-png-2.png");
      background-size: contain;
      background-repeat: no-repeat;
      width: 70px;
      height: 70px;
  }
  
  .btn-3 {
      background-image: url("https://pngimage.net/wp-content/uploads/2018/06/icon-ok-png-2.png");
      background-size: contain;
      background-repeat: no-repeat;
      width: 40px;
      height: 40px;
  }

<!doctype html>
<html lang="fr">

<head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 <meta name="description" content="">
 <meta name="author" content="">
 <link rel="icon" href="">
 <title>Title</title>
 <!-- Bootstrap core CSS -->

 <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
 <link rel="stylesheet" href="https://getbootstrap.com/docs/4.0/examples/sign-in/signin.css" integrity="sha384-mKB41Eu6sQQvXR8fqvXcVe8SXodkH6cYtVvHkvLwE7Nq0R/+coO4yJispNYKy9iZ" crossorigin="anonymous">
 <script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
 <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
 <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</head>

<body>

 <div class="container-fluid" style="margin-top: 0px !important">
  <form method="post" action="requetes/page.php" role="form" id="formulaire">
  <h3>Créer mission :</h3>
  <hr/>
  <input class="form-control" id="numero_bon" type="number" min="0" name="numero_bon" placeholder="Numéro de bon de livraison" required>
  <hr/>
  <input class="form-control" id="nom_client" name="nom_client" type="text" placeholder="Client" required>
  <hr/>
  <input class="form-control" id="adresse_client" name="adresse_client" type="text" placeholder="Adresse" required>
  <hr/>
  <input class="form-control" id="volume_livraison" type="number" name="volume_livraison" placeholder="M³" pattern="[0-9]+([\.,][0-9]+)?" step="0.01" formnovalidate required>
  <hr/>
  <input class="form-control" id="nom_centrale"type="text" name="nom_centrale" placeholder="Centrale" required>
  <hr/>
  <span class="label label-default">Zone</span>
  <select class="form-control form-control-sm" id="zone" type="text" name="zone">
   <option>1</option>
   <option>2</option>
   <option>3</option>
   <option>4</option>
   <option>5</option>
   <option>6</option>
   <option>7</option>
   <option>8</option>
   <option>9</option>
   <option>10</option>
   <option>11</option>
   <option>12</option>
   <option>13</option>
   <option>14</option>
   <option>15</option>
   <option>16</option>
   <option>17</option>
   <option>18</option>
   <option>19</option>
   <option>20</option>
  </select>
  <hr/>

  <div class="container-fluid" style="margin-top: 0 !important">
   <div class="row d-flex justify-content-around">
    <div class="d-flex flex-column align-items-center block-mission">
          <button class="btn btn-circle btn-small btn-1" id="creer_mission_replacee" name="type_voyage" value="Replacé" type="submit">
          </button>
            <label>Voyage validé replacé</label>
        </div>
    <div class="d-flex flex-column align-items-center block-mission">
     <button class="btn btn-circle btn-small btn-2" id="creer_mission" name="type_voyage" value="Livré" type="submit">
      </button>
      <label>Livraison effectuée validée</label>
    </div>
    <div class="d-flex flex-column align-items-center block-mission">
     <button class="btn btn-circle btn-small btn-3" id="creer_mission_annulee" name="type_voyage" value="Annulé" type="submit">
      </button>
      <label>Voyage annulé</label>
    </div>
   </div>
  </div>
 </form>
 </div>

</body>

</html>

有人可以修复我的代码吗？我不知道该怎么做？问题：点击Run code snippet --> Full page --> 将浏览器边框缩小到最小。

Answer 1

对于 btn-circle class 使用此代码

.btn-circle {
  width: 40px;
  padding: 0;
  margin: auto;
  height: 40px;
}

希望对您有所帮助

Answer 2

如果我没看错你的问题，听起来你不希望按钮失去对齐，因为你希望看到它们在桌面视图中保持在一行中。如果这是真的，那么您可以通过向“.justify-content-around”class 添加一个属性和值来解决这个问题。

.justify-content-around {
  flex-wrap: nowrap;
}

这里有一份很棒的 flexbox 指南 CSS：https://css-tricks.com/snippets/css/a-guide-to-flexbox/

但是，您可能想要尝试对按钮进行更适合移动设备的对齐，这可能会稍微改变一些事情，但也许只是在移动视图中稍微缩小按钮也会有所帮助。如果是这种情况，Udayavani 上面的回答将与我的结合使用，在您希望看到更改的断点处使用媒体查询，如下所示：

@media (max-width: 768px) {

    .btn-circle {
        width: 40px;
        padding: 0;
        margin: auto;
        height: 40px;
    }

}

媒体查询参考如下： https://www.w3schools.com/cssref/css3_pr_mediaquery.asp

Answer 3

只需对每个 div 连续使用 Bootstrap 列即可。像这样：

    <div class="container-fluid" style="margin-top: 0 !important">
        <div class="row justify-content-around">
            <div class="col flex-column align-items-center block-mission">
                <button class="btn btn-circle btn-small btn-1" id="creer_mission_replacee" name="type_voyage" value="Replacé" type="submit">
  </button>
                <label>Voyage validé replacé</label>
            </div>
            <div class="col flex-column align-items-center block-mission">
                <button class="btn btn-circle btn-small btn-2" id="creer_mission" name="type_voyage" value="Livré" type="submit">
                </button>
                <label>Livraison effectuée validée</label>
            </div>
            <div class="col flex-column align-items-center block-mission">
                <button class="btn btn-circle btn-small btn-3" id="creer_mission_annulee" name="type_voyage" value="Annulé" type="submit">
                </button>
                <label>Voyage annulé</label>
            </div>
        </div>
    </div>

参见：https://jsfiddle.net/sugandhnikhil/gkduhbs2/

Answer 4

如果您仍希望它们水平对齐，只需删除 class "row"，但您可能需要调整按钮文本的大小才能看起来非常漂亮。

Answer 5

.parrent_div{display:flex;
justify-content:center;
flex-direction:row;
}
.button {
width:100%
}

它将根据屏幕分辨率自动对齐您的元素

屏幕较窄时按钮未对齐

Button are not aligned when screen is narrow

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css

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responsive-design

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