html - 在关键帧动画 CSS 中更改 div 的内容

Question

我有以下代码。

#mf-loader-container {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 500px;
  height: 30px;
}
.mf-loader-circle {
  position: absolute;
  height: 30px;
  width: 30px;
  border-radius: 50%;
  border: 2px solid #03C9A9;
  top: -15px;
  background: white;
  text-align: center;
  line-height: 30px;
  color: #03C9A9;
}
.mf-loader-text {
  position: absolute;
  width: 150px;
  top: 20px;
}
#one-text {
  left: -10px;
  -webkit-animation: cl 3s;
}
#two-text {
  left: 200px;
  -webkit-animation: cl 3s;
  -webkit-animation-delay: 2s;
  -webkit-animation-fill-mode: forwards;
  color: rgba(1, 1, 1, 0);
}
#three-text {
  left: 480px;
  -webkit-animation: cl 3s;
  -webkit-animation-delay: 3s;
  -webkit-animation-fill-mode: forwards;
  color: rgba(1, 1, 1, 0);
}
@-webkit-keyframes cl {
  from {
    color: rgba(1, 1, 1, 0);
  }
  to {
    color: rgba(1, 1, 1, 1);
  }
}
#two {
  left: 240px;
}
#three {
  left: 490px;
}
#mf-loader {
  width: 100%;
  height: 3px;
  background: #03C9A9;
  position: absolute;
  -webkit-animation: mymove 5s;
  /* Chrome, Safari, Opera */
  animation: mymove 5s;
  border-radius: 3px;
}
/* Chrome, Safari, Opera */

@-webkit-keyframes mymove {
  0% {
    width: 0px;
  }
  50% {
    width: 50%;
  }
  100% {
    width: 100%;
  }
}
/* Standard syntax */

@keyframes mymove {
  0% {
    width: 0px;
  }
  50% {
    width: 50%;
  }
  100% {
    width: 100%;
  }
}

<div id="mf-loader-container">

  <div id="mf-loader">
    <div class="mf-loader-circle" id="one">
      1
    </div>
    <div class="mf-loader-circle" id="two">
      2
    </div>
    <div class="mf-loader-circle" id="three">
      3
    </div>
    <div class="mf-loader-text" id="one-text">
      Each day will be better than last.
      <br>This one especially
    </div>
    <div class="mf-loader-text" id="two-text">
      Subscribing .. Thank you for subscribing. We appreciate it!
    </div>
    <div class="mf-loader-text" id="three-text">
      DONE
    </div>
  </div>
</div>

这是一个类似结帐的动画 Action ，仅使用 CSS 完成。我试图在文本出现复选标记 ✓ 后更改圆圈的内容 - 是否有任何方法可以使用 css 中的内容标签更改内容。

Answer 1

将内容(1、2、3 数字)更改为:after 伪元素并在那里设置内容。然后，将其应用于每个圆圈。这样，您可以通过更改 content:""; 将它们包含到您的动画中将“检查”更改为您需要的任何内容。

.mf-loader-circle:after {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
#one:after {
  content: "1";
  -webkit-animation: check1 3s;
  -webkit-animation-fill-mode: forwards;
}
#two:after {
  content: "2";
  -webkit-animation: check2 3s;
  -webkit-animation-delay: 2s;
  -webkit-animation-fill-mode: forwards;
}
#three:after {
  content: "3";
  -webkit-animation: check3 3s;
  -webkit-animation-delay: 3s;
  -webkit-animation-fill-mode: forwards;
}
@-webkit-keyframes check1 {
  from {
    content: "1";
  }
  to {
    content: "check";
  }
}
@-webkit-keyframes check2 {
  from {
    content: "2";
  }
  to {
    content: "check";
  }
}
@-webkit-keyframes check3 {
  from {
    content: "3";
  }
  to {
    content: "check";
  }
}
#mf-loader-container {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  width: 500px;
  height: 30px;
}
.mf-loader-circle {
  position: absolute;
  height: 30px;
  width: 30px;
  border-radius: 50%;
  border: 2px solid #03C9A9;
  top: -15px;
  background: white;
  text-align: center;
  line-height: 30px;
  color: #03C9A9;
}
.mf-loader-text {
  position: absolute;
  width: 150px;
  top: 20px;
}
#one-text {
  left: -10px;
  -webkit-animation: cl 3s;
}
#two-text {
  left: 200px;
  -webkit-animation: cl 3s;
  -webkit-animation-delay: 2s;
  -webkit-animation-fill-mode: forwards;
  color: rgba(1, 1, 1, 0);
}
#three-text {
  left: 480px;
  -webkit-animation: cl 3s;
  -webkit-animation-delay: 3s;
  -webkit-animation-fill-mode: forwards;
  color: rgba(1, 1, 1, 0);
}
@-webkit-keyframes cl {
  from {
    color: rgba(1, 1, 1, 0);
  }
  to {
    color: rgba(1, 1, 1, 1);
  }
}
#two {
  left: 240px;
}
#three {
  left: 490px;
}
#mf-loader {
  width: 100%;
  height: 3px;
  background: #03C9A9;
  position: absolute;
  -webkit-animation: mymove 5s;
  /* Chrome, Safari, Opera */
  animation: mymove 5s;
  border-radius: 3px;
}
/* Chrome, Safari, Opera */

@-webkit-keyframes mymove {
  0% {
    width: 0px;
  }
  50% {
    width: 50%;
  }
  100% {
    width: 100%;
  }
}
/* Standard syntax */

@keyframes mymove {
  0% {
    width: 0px;
  }
  50% {
    width: 50%;
  }
  100% {
    width: 100%;
  }
}

<div id="mf-loader-container">

  <div id="mf-loader">
    <div class="mf-loader-circle" id="one">
    </div>
    <div class="mf-loader-circle" id="two">
    </div>
    <div class="mf-loader-circle" id="three">
    </div>
    <div class="mf-loader-text" id="one-text">
      Each day will be better than last.
      <br>This one especially
    </div>
    <div class="mf-loader-text" id="two-text">
      Subscribing .. Thank you for subscribing. We appreciate it!
    </div>
    <div class="mf-loader-text" id="three-text">
      DONE
    </div>
  </div>
</div>

以下是变更摘要:

---

• 在 HTML 中从您的圈子中删除了内容。

---

• 创建了一个 :after 伪元素，对你所有的圈子都是通用的。

---

.mf-loader-circle:after {
  position:absolute;
  width:100%;
  height:100%;
  left:50%;
  top:50%;
  transform:translate(-50%, -50%);
}

在这里，我使用 2D 变换通过 position:absolute;

将数字定位在中心

• 使用元素的 ID 将每个 content:""; 属性设置为必要的数字。

• 为不同的数字创建动画，例如:

---

#one:after {
  content:"1";
  -webkit-animation: check1 3s;
  -webkit-animation-fill-mode: forwards;
}
@-webkit-keyframes check1{
  from {
    content:"1";
  }
  to {
    content:"check";
  }
}

注意:添加相应的供应商前缀。