在H1居中之前对齐图标

Question

我试图将图标置于文本块之前，这样如果文本包含一个字或多行，它将始终在文本块之前垂直居中。

.box {
padding: 20px;
height: auto;
width:30%;
}

.headline {
  position: relative;
  padding: 0 0 0 70px;
  font-size: 22px;
  line-height: 1.5;
  margin:: 40px 0;
  color: #000;
}

.headline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 60px;
  height: 60px;
  background: url('http://icons.veryicon.com/ico/Internet%20%26%20Web/Browsers%202/Google%20Chrome.ico') top right no-repeat;
  background-size: cover;
}

<div class="box">
  <h1 class="headline">Headline: your address is blalalaslsakdlpdslasddas/h1>
</div>

Answer 1

以这种方式试试。

.box {
  padding: 20px;
  height: auto;
  width:30%;
}

.headline {
  padding: 0 0 0 70px;
  font-size: 22px;
  line-height: 1.5;
  margin:: 40px 0;
  color: #000;
  background: url('http://icons.veryicon.com/ico/Internet%20%26%20Web/Browsers%202/Google%20Chrome.ico') no-repeat;
  background-size: 60px 60px;
  background-position: 0 center;
}

<div class="box">
  <h1 class="headline">Headline: etiam porta sem male suada magna</h1>
</div>

Answer 2

在这里使用top: calc(50% - 30px); 30 = height/2;

.box {
padding: 20px;
height: auto;
width:30%;
}

.headline {
  position: relative;
  padding: 0 0 0 70px;
  font-size: 22px;
  line-height: 1.5;
  margin:: 40px 0;
  color: #000;
}

.headline::before {
  content: '';
  position: absolute;
  left: 0;
  top: calc(50% - 30px);
  width: 60px;
  height: 60px;
  background: url('http://icons.veryicon.com/ico/Internet%20%26%20Web/Browsers%202/Google%20Chrome.ico') top right no-repeat;
  background-size: cover;
}

<div class="box">
  <h1 class="headline">Headline: your address is blalalaslsakdlpdslasddas</h1>
</div>

Answer 3

你在寻找这样的东西吗？

.box {
padding: 20px;
height: auto;
width:30%;
}

.headline {
    position: relative;
    padding: 0 10px;
    font-size: 22px;
    line-height: 1.5;
    margin: 40px 0;
    color: #000;
    width: 100%;
}

.headline::before {
      content: '';
    position: absolute;
    right: 0;
    margin: auto;
    left: 0;
    bottom: 0;
    top: 0;
    width: 60px;
    height: 60px;
    background: url(https://markwarrick.com/wp-content/uploads/2014/07/sample-icon.png) top right no-repeat;
    background-size: cover;
}

<div class="box">
  <h1 class="headline">Headline: your address is blalalaslsakdlpdslasddas</h1>
</div>