如何删除HTML / CSS中未声明的边框

如何解决如何删除HTML / CSS中未声明的边框

因此，我在页面上创建了“手风琴”菜单，但是，未创建或声明的实际手风琴周围似乎有阴影边框或阴影。

我已经尝试过删除包含创建边框，内边距，边距和阴影的所有线条的尝试。但是我无法将其删除或掩饰。

@import url('https://fonts.googleapis.com/css?family=Montserrat');

* {
  margin: 0;
  padding: 0;
  Box-sizing: border-Box;
}

h1 {
  text-align: center;
  margin: 2rem 0;
  font-size: 2.5rem;
}

.accordion {
  width: 90%;
  max-width: 1000px;
  margin: 2rem auto;
}
.accordion-item {
  background-color: #fff;
  color: #111;
  margin: 1rem 0;
  border-radius: 0.5rem;
  Box-shadow: 0 2px 5px 0 rgba(0,0.25);
}
.accordion-item-header {
  padding: 0.5rem 3rem 0.5rem 1rem;
  min-height: 3.5rem;
  line-height: 1.25rem;
  font-weight: bold;
  display: flex;
  align-items: center;
  position: relative;
  cursor: pointer;
}
.accordion-item-header::after {
  content: "\02C7";
  font-size: 2rem;
  position: absolute;
  right: 1rem;
  color: orange;
}
.accordion-item-header.active::after {
  content: "\02C6";
}
.accordion-item-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
}
.accordion-item-body-content {
  padding: 1rem;
  line-height: 1.5rem;
  border-top: 1px solid;
  border-image: linear-gradient(to right,transparent,#34495e,transparent) 1;
}

@media(max-width:767px) {
  html {
    font-size: 14px;
  }
}

<div class="accordion">
  <div class="accordion-item">
    <div class="accordion-item-header">
      Title for card 1
    </div>
    <div class="accordion-item-body">
      <div class="accordion-item-body-content">
        Section for Card 1
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <div class="accordion-item-header">
      Title for Card 2
    </div>
    <div class="accordion-item-body">
      <div class="accordion-item-body-content">
        Section for Card 2
      </div>
    </div>
  </div>
</div>

我在此处附加了图像以显示当前输出是什么

解决方法

它不是围绕整个手风琴，而是其中的每个元素。

在-乃至整个-中取出盒子阴影：

.accordion-item {
    background-color: #fff;
    color: #111;
    margin: 1rem 0;
    border-radius: 0.5rem;
    box-shadow: 0 2px 5px 0 rgba(0,0.25);
}

您可能还想摆脱以下内容中给出的边界：

.accordion-item-body-content {
  padding: 1rem;
  line-height: 1.5rem;
  border-top: 1px solid;
  border-image: linear-gradient(to right,transparent,#34495e,transparent) 1;
}

但是我不能从这个问题中分辨出来。

,

我看不到任何边框，请看一下代码片段。这是完整的代码吗？你没想念什么吗？

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  h1 {
    text-align: center;
    margin: 2rem 0;
    font-size: 2.5rem;
  }
  
  .accordion {
    width: 90%;
    max-width: 1000px;
    margin: 2rem auto;
  }
  .accordion-item {
    background-color: #fff;
    color: #111;
    margin: 1rem 0;
    border-radius: 0.5rem;
    box-shadow: 0 2px 5px 0 rgba(0,0.25);
  }
  .accordion-item-header {
    padding: 0.5rem 3rem 0.5rem 1rem;
    min-height: 3.5rem;
    line-height: 1.25rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    position: relative;
    cursor: pointer;
  }
  .accordion-item-header::after {
    content: "\02C7";
    font-size: 2rem;
    position: absolute;
    right: 1rem;
    color: orange;
  }
  .accordion-item-header.active::after {
    content: "\02C6";
  }
  .accordion-item-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
  }
  .accordion-item-body-content {
    padding: 1rem;
    line-height: 1.5rem;
    border-top: 1px solid;
    border-image: linear-gradient(to right,transparent) 1;
  }
  
  @media(max-width:767px) {
    html {
      font-size: 14px;
    }
  }

<div class="accordion">
  <div class="accordion-item">
    <div class="accordion-item-header">
      Title for card 1
    </div>
    <div class="accordion-item-body">
      <div class="accordion-item-body-content">
        Section for Card 1
      </div>
    </div>
  </div>
  <div class="accordion-item">
    <div class="accordion-item-header">
      Title for Card 2
    </div>
    <div class="accordion-item-body">
      <div class="accordion-item-body-content">
        Section for Card 2
      </div>
    </div>
  </div>
</div>