javascript - 选项卡文本颜色在选择选项卡时变为黑色 - 单击屏幕上的任何位置后，我得到我的结果

Question

我正在使用 html、css 和 bootstrap 来设计一些选项卡。这是我现在得到的结果：

单击屏幕上的任何位置时，我都会得到我有代码的原始结果。

点击屏幕任意位置后的结果

如何解决这2个问题：

1. 在选择/单击任何选项卡时，选项卡文本颜色必须变为红色。正如您在我的代码中看到的那样，我已经尝试过 active 关键字。

2. 实际结果可以立即显示，而不是点击屏幕。

我的代码：

<div class="container">
<div class="row">
    <div class="col-md-12">
        <div class="tab" role="tabpanel">
            <ul class="nav nav-tabs" role="tablist">
                <li role="presentation" class="active"><a href="#medicalNotes" aria-controls="home" role="tab" data-toggle="tab">Medical Notes</a></li>
                <li role="presentation" ><a href="#medication" aria-controls="profile" role="tab" data-toggle="tab">Medications</a></li>
                <li role="presentation"><a href="#allergies" aria-controls="messages" role="tab" data-toggle="tab">Allergies</a></li>
                <li role="presentation"><a href="#vitalsh" aria-controls="messages" role="tab" data-toggle="tab">Vital Social history</a></li>
                <li role="presentation"><a href="#familyhh" aria-controls="messages" role="tab" data-toggle="tab">Family Health history</a></li>
            </ul>
            <div class="tab-content tabs">
                <div role="tabpanel" class="tab-pane fade in active" id="medicalNotes">
                    <h3>Section 1</h3>
                    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
                </div>
                <div role="tabpanel" class="tab-pane fade" id="medication">
                    <h3>Section 2</h3>
                    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
                </div>
                <div role="tabpanel" class="tab-pane fade" id="allergies">
                    <h3>Section 3</h3>
                    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
                </div>
                <div role="tabpanel" class="tab-pane fade" id="vitalsh">
                    <h3>Section 4</h3>
                    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
                </div>
                <div role="tabpanel" class="tab-pane fade" id="familyhh">
                    <h3>Section 5</h3>
                    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
                </div>
            </div>
        </div>
    </div>
</div>

CSS

a:hover,a:focus{
    text-decoration: none;
    outline: none;
}
.tab .nav-tabs{
    border: none;
    border-bottom: 2px solid #dc697f;
    margin: 0;}
.tab .nav-tabs li a{
    padding: 10px 20px;
    margin: 0 10px -1px 0;
    font-size: 13px;
    font-weight: 800;
    color: #6da1b7;
    text-transform: uppercase;
    border: 2px solid #e6e5e1;
    border-bottom: none;
    border-radius: 5px 5px 0 0;
    z-index: 1;
    position: relative;
    transition: all 0.3s ease 0s;
}
.tab .nav-tabs li.active a{
    background: #fff;
    color: #6da1b7;
    border: 2px solid #dc697f;
    border-bottom-color: transparent;
    border-top-width: 3px;
    border-right-width: 1px;
    border-left-width: 1px;
    border-radius: 7px;
}
.tab .nav-tabs li a:before{
    content: "";
    display: block;
    height: 3px;
    background: #fff;
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    transform: scaleX(0);
    transition: all 0.3s ease-in-out 0s;
}
.nav-tabs > li > a{
    color: #D33E1E;
}
.tab .nav-tabs li.active a:before,
.tab .nav-tabs li a:hover:before{ transform: scaleX(1); }
.tab .tab-content{
    padding: 10px;
    font-size: 19px;
    color: #6f6f6f;
    line-height: 30px;
    letter-spacing: 1px;
    position: relative;
}
@media only screen and (max-width: 479px){
    .tab .nav-tabs{ border: none; }
    .tab .nav-tabs li{
        width: 100%;
        text-align: center;
        margin-bottom: 15px;

    }
    .tab .nav-tabs li a{
        margin: 0;
        border-bottom: 2px solid transparent;
    }
    .tab .nav-tabs li a:before{
        content: "";
        width: 100%;
        height: 2px;
        background: #dc697f;
        position: absolute;
        bottom: -2px;
        left: 0;
        }
}

标签： javascripthtmlcsswebbootstrap-4

Answer 1

颜色被nav.lesscss 文件覆盖。!important不推荐。相反，您可以specificity通过使用不同的选择器而不是相同来增加nav.less. i:ea具有以 .href开头的属性的目标#。示例 - .tab .nav-tabs li.active a[href^="#"]。

a:hover,
a:focus {
  text-decoration: none;
  outline: none;
}

.tab .nav-tabs {
  border: none;
  border-bottom: 2px solid #dc697f;
  margin: 0;
}

.tab .nav-tabs li a {
  padding: 10px 20px;
  margin: 0 10px -1px 0;
  font-size: 13px;
  font-weight: 800;
  color: #6da1b7;
  text-transform: uppercase;
  border: 2px solid #e6e5e1;
  border-bottom: none;
  border-radius: 5px 5px 0 0;
  z-index: 1;
  position: relative;
  transition: all 0.3s ease 0s;
}

.tab .nav-tabs li.active a[href^="#"] {
  background: #fff;
  color: red;
  border: 2px solid #dc697f;
  border-bottom-color: transparent;
  border-top-width: 3px;
  border-right-width: 1px;
  border-left-width: 1px;
  border-radius: 7px;
}

.tab .nav-tabs li a:before {
  content: "";
  display: block;
  height: 3px;
  background: #fff;
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  transform: scaleX(0);
  transition: all 0.3s ease-in-out 0s;
}

.nav-tabs>li>a {
  color: #D33E1E;
}

.tab .nav-tabs li.active a:before,
.tab .nav-tabs li a:hover:before {
  transform: scaleX(1);
}

.tab .tab-content {
  padding: 10px;
  font-size: 19px;
  color: #6f6f6f;
  line-height: 30px;
  letter-spacing: 1px;
  position: relative;
}

@media only screen and (max-width: 479px) {
  .tab .nav-tabs {
    border: none;
  }
  .tab .nav-tabs li {
    width: 100%;
    text-align: center;
    margin-bottom: 15px;
  }
  .tab .nav-tabs li a {
    margin: 0;
    border-bottom: 2px solid transparent;
  }
  .tab .nav-tabs li a:before {
    content: "";
    width: 100%;
    height: 2px;
    background: #dc697f;
    position: absolute;
    bottom: -2px;
    left: 0;
  }
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="container">
  <div class="row">
    <div class="col-md-12">
      <div class="tab" role="tabpanel">
        <ul class="nav nav-tabs" role="tablist">
          <li role="presentation" class="active"><a href="#medicalNotes" aria-controls="home" role="tab" data-toggle="tab">Medical Notes</a></li>
          <li role="presentation"><a href="#medication" aria-controls="profile" role="tab" data-toggle="tab">Medications</a></li>
          <li role="presentation"><a href="#allergies" aria-controls="messages" role="tab" data-toggle="tab">Allergies</a></li>
          <li role="presentation"><a href="#vitalsh" aria-controls="messages" role="tab" data-toggle="tab">Vital Social history</a></li>
          <li role="presentation"><a href="#familyhh" aria-controls="messages" role="tab" data-toggle="tab">Family Health history</a></li>
        </ul>
        <div class="tab-content tabs">
          <div role="tabpanel" class="tab-pane fade in active" id="medicalNotes">
            <h3>Section 1</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
          </div>
          <div role="tabpanel" class="tab-pane fade" id="medication">
            <h3>Section 2</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
          </div>
          <div role="tabpanel" class="tab-pane fade" id="allergies">
            <h3>Section 3</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
          </div>
          <div role="tabpanel" class="tab-pane fade" id="vitalsh">
            <h3>Section 4</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
          </div>
          <div role="tabpanel" class="tab-pane fade" id="familyhh">
            <h3>Section 5</h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce semper, magna a ultricies volutpat, mi eros viverra massa, vitae consequat nisi justo in tortor. Proin accumsan felis ac felis dapibus, non iaculis mi varius.</p>
          </div>
        </div>
      </div>
    </div>
  </div>