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首页 > 解决方案 > 将引导输入组标签背景颜色设置为 #rgb 值

html - 将引导输入组标签背景颜色设置为 #rgb 值

问题描述

示例代码显示了一个带有Input Group Label的输入字段。输入组标签的背景颜色已默认设置。

我需要将其修改为自己的RGB值。例如：#646464

正如您在 CSS 代码中看到的那样，我尝试修改 the和the的背景颜色，但它们都没有解决我的问题。输入组标签的背景颜色保持不变。<span><div>

.myDivClass {
  background-color: #FF0000;
}

.mySpanClass {
  background-color: #00FF00;
}
<!DOCTYPE html>
<html lang="en">

<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
</head>

<body>

  <div class="container mt-3">
    <form>
      <label for="demo">Write your email here:</label>
      <div class="input-group mb-3">
        <input type="text" class="form-control" placeholder="Email" id="demo" name="email">
        <div class="input-group-append myDivClass">
          <span class="input-group-text mySpanClass">@example.com</span>
        </div>
      </div>
    </form>
  </div>

</body>

</html>

标签： htmlcssbootstrap-4

解决方案

你可以做这样的事情。

.myDivClass {
  background-color: #FF0000;
}

span.mySpanClass {
  background-color: #00FF00;
}
<!DOCTYPE html>
<html lang="en">

<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
</head>

<body>

  <div class="container mt-3">
    <form>
      <label for="demo">Write your email here:</label>
      <div class="input-group mb-3">
        <input type="text" class="form-control" placeholder="Email" id="demo" name="email">
        <div class="input-group-append">
          <span class="mySpanClass input-group-text">@example.com</span>
        </div>
      </div>
    </form>
  </div>

</body>

</html>

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