html - 使容器淡入淡出 css

Question

下面是我使用纯 CSS 和 HTML 创建的 Accordion 列表的代码。单击标题时，我的文本会以不同的背景颜色飞入。当单击打开和关闭时，我将如何使带有文本和 dif 背景颜色的容器淡入淡出？比如将不透明度从 0 设置为 1？任何帮助，干杯。

.wrapper {
  max-width: 960px;
  margin: 0 auto;
}


/* Acordeon styles */

.tab {
  position: relative;
  margin-bottom: 1px;
  width: 100%;
  overflow: hidden;
}

.bold {
  font-weight:bold;
  color: #005bab;
  }

.top {
  margin-top:-20px;
  text-align: center;
  font-size:13px;
}

.input {
  position: absolute;
  opacity: 0;
  z-index: -1;
}

.label {
  position: relative;
  text-align: center;
  display: block;
  padding: 0 0 0 1em;
  color: #005bab;
  background: #e2ecf6;
  font-size: 14px;
  font-family: Verdana;
  font-weight: bold;
  line-height: 6;
  cursor: pointer;
}

.tab-content {
  max-height: 0;
  overflow: hidden;
  padding: 0px;
  -webkit-transition: max-height .5s;
  -o-transition: max-height .5s;
  transition: max-height .5s;
  padding-left: 35px;
  background: #c3d7ea;
}

.tab-content .container {
  padding: 1em;
  margin: 0;
  transform: scale(0.6);
  -webkit-transition: transform .5s;
  -o-transition: transform .5s;
  transition: transform .5s;
  background: #f4f8fc;
}


/* :checked */

.input:checked~.tab-content {
  max-height: 25em;
}

.input:checked~.tab-content .container {
  transform: scale(1);
}

/* Icon */

.label::after {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  width: 3em;
  height: 3em;
  line-height: 3;
  text-align: center;
  -webkit-transition: all .35s;
  -o-transition: all .35s;
  transition: all .35s;
}

.input[type=checkbox]+.label::after {
  content: "+";
}

.input[type=radio]+.label::after {
  content: "";
}

.input[type=checkbox]:checked+.label::after {
  transform: rotate(315deg);
}

.input[type=radio]:checked+.label::after {
  transform: rotateX(180deg);
}

.bottombar {
  content: "";
  display: block;
  height: 1em;
  width: 100%;
  background-color: #00688B;
}

<div class="wrapper">
  <div class="tab">
    <input name="tabs" class="input" id="tab-one" type="checkbox" />
    <label class="label" for="tab-one">Label One</label>
    <div class="tab-content">
      <div class="container">
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, architecto, explicabo perferendis nostrum, maxime impedit atque odit sunt pariatur illo obcaecati soluta molestias iure facere dolorum adipisci eum? Saepe, itaque.</p>
      </div>
    </div>
  </div>
  <div class="tab">
    <input name="tabs" class="input" id="tab-two" type="checkbox" />
    <label class="label" for="tab-two">Label Two</label>
    <div class="tab-content">
      <div class="container">
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, architecto, explicabo perferendis nostrum, maxime impedit atque odit sunt pariatur illo obcaecati soluta molestias iure facere dolorum adipisci eum? Saepe, itaque.</p>
      </div>
    </div>
  </div>
  <div class="tab">
    <input name="tabs" class="input" id="tab-three" type="checkbox" />
    <label class="label" for="tab-three">Label Three</label>
    <div class="tab-content">
      <div class="container">
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, architecto, explicabo perferendis nostrum, maxime impedit atque odit sunt pariatur illo obcaecati soluta molestias iure facere dolorum adipisci eum? Saepe, itaque.</p>
      </div>
    </div>
  </div>
  <div class="bottombar"></div>
</div>

Answer 1

如果我的理解正确，您将需要transition 多个属性。这很容易。使用与用于单个属性转换相同的语法，但对要转换的每个属性执行此操作，并用逗号 , 分隔。例如:

.selector {
   color: white;
   opacity: 0;
   background-color: blue;
   transition: color 500ms ease-in-out, opacity 1000ms ease-in, background-color 500ms linear;
}

我更新了 .tab-content .container 中的 transition 属性以及设置 opacity。然后在.input:checked~.tab-content .container`中定义opacity。

.wrapper {
  max-width: 960px;
  margin: 0 auto;
}


/* Acordeon styles */

.tab {
  position: relative;
  margin-bottom: 1px;
  width: 100%;
  overflow: hidden;
}

.bold {
  font-weight:bold;
  color: #005bab;
  }

.top {
  margin-top:-20px;
  text-align: center;
  font-size:13px;
}

.input {
  position: absolute;
  opacity: 0;
  z-index: -1;
}

.label {
  position: relative;
  text-align: center;
  display: block;
  padding: 0 0 0 1em;
  color: #005bab;
  background: #e2ecf6;
  font-size: 14px;
  font-family: Verdana;
  font-weight: bold;
  line-height: 6;
  cursor: pointer;
}

.tab-content {
  max-height: 0;
  overflow: hidden;
  padding: 0px;
  -webkit-transition: max-height .5s;
  -o-transition: max-height .5s;
  transition: max-height .5s;
  padding-left: 35px;
  background: #c3d7ea;
}

.tab-content .container {
  padding: 1em;
  margin: 0;
  opacity: 0;
  transform: scale(0.6);
  -webkit-transition: transform .5s, opacity .75s;
  -o-transition: transform .5s, opacity .75s;
  transition: transform .5s, opacity .75s;
  background: #f4f8fc;
}


/* :checked */

.input:checked~.tab-content {
  max-height: 25em;
}

.input:checked~.tab-content .container {
  transform: scale(1);
  opacity: 1;
}

/* Icon */

.label::after {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  width: 3em;
  height: 3em;
  line-height: 3;
  text-align: center;
  -webkit-transition: all .35s;
  -o-transition: all .35s;
  transition: all .35s;
}

.input[type=checkbox]+.label::after {
  content: "+";
}

.input[type=radio]+.label::after {
  content: "";
}

.input[type=checkbox]:checked+.label::after {
  transform: rotate(315deg);
}

.input[type=radio]:checked+.label::after {
  transform: rotateX(180deg);
}

.bottombar {
  content: "";
  display: block;
  height: 1em;
  width: 100%;
  background-color: #00688B;
}

<div class="wrapper">
  <div class="tab">
    <input name="tabs" class="input" id="tab-one" type="checkbox" />
    <label class="label" for="tab-one">Label One</label>
    <div class="tab-content">
      <div class="container">
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, architecto, explicabo perferendis nostrum, maxime impedit atque odit sunt pariatur illo obcaecati soluta molestias iure facere dolorum adipisci eum? Saepe, itaque.</p>
      </div>
    </div>
  </div>
  <div class="tab">
    <input name="tabs" class="input" id="tab-two" type="checkbox" />
    <label class="label" for="tab-two">Label Two</label>
    <div class="tab-content">
      <div class="container">
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, architecto, explicabo perferendis nostrum, maxime impedit atque odit sunt pariatur illo obcaecati soluta molestias iure facere dolorum adipisci eum? Saepe, itaque.</p>
      </div>
    </div>
  </div>
  <div class="tab">
    <input name="tabs" class="input" id="tab-three" type="checkbox" />
    <label class="label" for="tab-three">Label Three</label>
    <div class="tab-content">
      <div class="container">
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, architecto, explicabo perferendis nostrum, maxime impedit atque odit sunt pariatur illo obcaecati soluta molestias iure facere dolorum adipisci eum? Saepe, itaque.</p>
      </div>
    </div>
  </div>
  <div class="bottombar"></div>
</div>