Question

大家晚安，

我一直在使用Bootstrap 4，并制作了一个简单的Navbar，想更改字体大小和颜色（或悬停颜色），但是由于某种原因，字体大小似乎可以工作，但是颜色却不能。我似乎也不能在每个项目之间添加其他填充。我以为只要在Bootstrap 4之后插入自定义CSS文件，我就可以覆盖内容。（这是我正在参加的课程，所以请不要介意“光晕”主题）

main {
    color: brown;
    padding: 50px;
    height: 1200px;
}

#Wallpaper {
    height: 220px;
    width: 100%;
}

#sticky-footer {
    height: 60px;
}

nav ul li a {
    font-size: 17px;
    color: brown;
}

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Master Chief</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/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/4.4.1/js/bootstrap.min.js"></script>    
    <link rel="stylesheet" type="text/css" href="WebsiteCSS.css">
 
  </head>


<body>

<img id="Wallpaper" src="/Website/Images/HomeWallpaper.png" alt="Halo Wallpaper"> 

<nav class="navbar navbar-expand-sm bg-dark navbar-dark sticky-top">
  <!-- Masterchief Logo -->
  <a class="navbar-brand" href="#">
    <img src="/Website/Images/Logo.png" alt="Halo Logo" style="width:40px;">
  </a>
        
  <!-- Links -->
  <ul class="navbar-nav">
    <li class="nav-item active">
      <a class="nav-link" href="#">Halo</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">Handlung</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">Fraktionen</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">Master Chief</a>
    </li>
  <!-- Dropdown -->
    <li class="nav-item dropdown">
      <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
          Spielreihe
      </a>
      <div class="dropdown-menu">
          <a class="dropdown-item" href="#">Halo</a>
          <a class="dropdown-item" href="#">Halo 2</a>
          <a class="dropdown-item" href="#">Halo 3</a>
          <a class="dropdown-item" href="#">Halo Wars</a>
          <a class="dropdown-item" href="#">Halo Reach</a>
          <a class="dropdown-item" href="#">Halo 4</a>
          <a class="dropdown-item" href="#">Halo 5: Guardians</a>
      </div>
    </li>
  </ul>
</nav>
<main>
  Lorem ipsum dolor sit amet consectetur adipisicing elit. Id odio reiciendis consectetur architecto cumque? Iste reprehenderit magni dicta ex iusto officia ducimus dolorum? Consequuntur esse numquam, illum sit sapiente officiis?
</main>
<footer id="sticky-footer" class="py-3 bg-dark text-white-50">
  <div class="container text-center">
    <small>Copyright &copy; Master Chief</small>
  </div>
</footer>
</body>

</html>

Answer 1

最简单的解决方案是在CSS中使用next_row2 = 1 numerkolumny = 1 nastepny = 1 nastepny2 = 1 ilosc_gbp = 0 ilosc_inne = 0 wolniejszy = 1 wolniejszy2 = 1 dlugosctablicy = len(assets2) for zmienna2 in assets2: if nastepny < dlugosctablicy: for lista in assets2: if assets2[zmienna2][6] == assets2[lista][6]: if assets2[nastepny][16] == "GBP": # JESLI ZNALAZLES GBP, POLICZ DO GBP ilosc_gbp = ilosc_gbp + 1 else: # JESLI ZNALAZLES INNA WALUTE, POLICZ DO INNEJWALUTY ilosc_inne = ilosc_inne + 1 nastepny = nastepny + 1 if nastepny > dlugosctablicy: nastepny = 1 else: # SUMUJ WSZYSTKIE WALUTY suma_walut = ilosc_gbp + ilosc_inne # JESLI ZNAJDZIE ODCHYLELNIA - RAPORTUJ if (suma_walut != ilosc_gbp) and (suma_walut != ilosc_inne): for wolniejszy2 in range(wolniejszy2, nastepny): # nr wiersza print(wolniejszy2) if assets2[wolniejszy2][6] == assets2[nastepny2][6]: if ilosc_gbp > ilosc_inne: result_tab.cell(column=17, row=nastepny2+1, value="Currency different than GBP. Check! [Vendor: "+str(assets2[nastepny2][6])+"]").font = style_blad_bold nastepny2 = nastepny2 + 1 else: result_tab.cell(column=17, row=nastepny2+1, value="GBP currency in other currencies. Check! [Vendor: "+str(assets2[nastepny2][6])+"]").font = style_blad_bold nastepny2 = nastepny2 + 1 wolniejszy = nastepny wolniejszy2 = wolniejszy nastepny2 = wolniejszy ilosc_gbp = 0 # ZERUJ ZMIENNE, LICZYMY NOWEGO VENDORA ilosc_inne = 0 # ZERUJ ZMIENNE, LICZYMY NOWEGO VENDORA。

!important

main {
    color: brown;
    padding: 50px;
    height: 1200px;
}

#Wallpaper {
    height: 220px;
    width: 100%;
}

#sticky-footer {
    height: 60px;
}

nav ul li a {
    font-size: 17px;
    color: brown !important;
}

Answer 2

在项目中使用检查元素（右键单击该元素，然后单击检查）。您将找到应用颜色的位置。

检查中显示了用于施加颜色的

选择器。因此，复制选择器路径并用您的样式覆盖。例如：

.navbar-dark .navbar-nav .nav-link{
   color: brown;
}

覆盖Bootstrap 4导航栏链接颜色

2 个答案: