Question

我试图使两个相邻元素的内角在两个元素之间具有弯曲的边框效果，以隐藏90度角。当前设计的图片如下。

所需外观：

我已经反复搜索并阅读了许多文档，但似乎无法将其包裹在脑海中。我的CSS也不强。我目前在以下位置：

body {
  overflow-x: hidden;
  background-color: #111;
}

#right-sidebar {
  z-index: 1000;
  position: fixed;
  top: 58px;
  right: 0;
  height: 100%;
  width: 60px;
}

#right-sidebar .tab-group {
  list-style: none;
  padding: 0;
  position: absolute;
  width: 100%;
}

.tab-header {
  opacity: 1;
  color: #999;
  text-align: center;
  animation: fadeinout .3s linear both;
}

.tab .tab-header span {
  display: none;
  white-space: nowrap;
}

.tab .tab-header i {
  display: initial;
}

.tab-header:hover {
  color: goldenrod;
  background: rgba(255, 255, 255, 0.2);
  border-radius: inherit;
  transition: all .3s ease-in-out;
}

.tab {
  width: 60px;
  border: goldenrod solid 1px;
  border-right: 0;
  border-radius: 8px 0 0 8px;
  margin-bottom: 2px;
  text-indent: 0;
  line-height: 40px;
  transition: all .3s ease-in-out .3s;
}

.tab.show {
  width: 600px;
  margin-left: -535px;
  border-radius: 8px 0 0 0;
  transition: all .3s ease-in-out;
}

.tab-body {
  position: absolute;
  visibility: hidden;
  max-height: 300px;
  width: 530px;
  height: 0;
  left: -535px;
  border: goldenrod solid 1px;
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background: #111;
  transition: all .3s ease-in-out;
}

.tab.show .tab-body {
  height: 300px;
  visibility: visible;
  transition: all .3s ease-in-out .3s;
}

.tab.show .tab-header {
  text-align: left;
  padding-left: 12px;
}

.tab.show .tab-header span {
  display: inline;
}

.tab.show .tab-header i {
  display: none;
}

<body>
  <div id="right-sidebar">
    <ul class="tab-group">
      <li class="tab show">
        <div class="tab-header">
          <span>Details</span>
          <i>D</i>
        </div>
        <div class="tab-body"></div>
      </li>
      <li class="tab">
        <div class="tab-header">
          <span>Shortcuts</span>
          <i>S</i>
        </div>
        <div class="tab-body"></div>
      </li>
    </ul>
  </div>
</body>

下移的元素是tab-body（在右转向标志选项卡的旁边），而越过的元素（在右转向标志选项卡的上方）是'li'元素

Answer 1

我添加了.tab-body::before，它有一个带有左上边框的小元素，没有背景，它的阴影覆盖了整个角度。它需要调整，但已经解决了很多：

body {
  overflow-x: hidden;
  background-color: #111;
}

#right-sidebar {
  z-index: 1000;
  position: fixed;
  top: 58px;
  right: 0;
  height: 100%;
  width: 60px;
}

#right-sidebar .tab-group {
  list-style: none;
  padding: 0;
  position: absolute;
  width: 100%;
}

.tab-header {
  opacity: 1;
  color: #999;
  text-align: center;
  animation: fadeinout .3s linear both;
}

.tab .tab-header span {
  display: none;
  white-space: nowrap;
}

.tab .tab-header i {
  display: initial;
}

.tab-header:hover {
  color: goldenrod;
  background: rgba(255, 255, 255, 0.2);
  border-radius: inherit;
  transition: all .3s ease-in-out;
}

.tab {
  width: 60px;
  border: goldenrod solid 1px;
  border-right: 0;
  border-radius: 8px 0 0 8px;
  margin-bottom: 2px;
  text-indent: 0;
  line-height: 40px;
  transition: all .3s ease-in-out .3s;
}

.tab.show {
  width: 600px;
  margin-left: -535px;
  border-radius: 8px 0 0 0;
  transition: all .3s ease-in-out;
  z-index: 999;
}

.tab-body {
  position: absolute;
  visibility: hidden;
  max-height: 300px;
  width: 530px;
  left: -535px;
  top: 39.5px;
  border: goldenrod solid 1px;
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background: #111;
  transition: all .3s ease-in-out;
}

.tab-body::before {
  content: '';
  position: absolute;
  height: 13px;
  width: 13px;
  left: 100%;
  top: 1px;
  border: goldenrod solid 1px;
  border-bottom: 0;
  border-right: 0;
  border-top-left-radius: 8px;
  box-shadow: -4px -2px 0 0 #111;
}

.tab.show .tab-body {
  height: 300px;
  visibility: visible;
  transition: all .3s ease-in-out .3s;
}

.tab.show .tab-header {
  text-align: left;
  padding-left: 12px;
}

.tab.show .tab-header span {
  display: inline;
}

.tab.show .tab-header i {
  display: none;
}

<body>
  <div id="right-sidebar">
    <ul class="tab-group">
      <li class="tab show">
        <div class="tab-header">
          <span>Details</span>
          <i class="fas fa-info">D</i>
        </div>
        <div class="tab-body"></div>
      </li>
      <li class="tab">
        <div class="tab-header">
          <span>Shortcuts</span>
          <i class="fas fa-directions">S</i>
        </div>
        <div class="tab-body"></div>
      </li>
    </ul>
  </div>
</body>

从元素向外反转右上边界

1 个答案: