html - 居中 img

Question

我需要将一个 img 居中(带有 class=“key”的那个，但是 float 元素阻止了它。我应该使用什么技术将其居中？

谢谢!

GitHub 存储库:https://github.com/CalogerN/beta-sign-up-split-layout

实时预览:https://calogern.github.io/beta-sign-up-split-layout/

body {
  margin: 0px;
  padding: 0px;
  font-size: 16px;
}

header {
  background-image: url(../img/bg-intro.svg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 643px;
}

.logo {
  float: left;
}

.wlogo {
  fill: white;
}

.key {
  height: 234px;
  position: relative;
  top: 200px;
}

.key-wrapper {
  display: block;
  margin: auto;
}

<section class="section-a">

  <header>

    <svg width="120" height="35" class="logo" *numbers* </svg>

    <div class="key-wrapper">

      <img src="img/illustration-main.svg" alt="a man with a key" class="key">

    </div>

  </header>

Answer 1

试一试:

HTML 结构:

 <header>
    <div class="svg-wrap">
        <svg width="120" height="35" class="logo" *numbers*="" <="" svg=""></svg>
    </div>
    <div class="key-wrapper">
        <img src="img/illustration-main.svg" alt="a man with a key" class="key">
    </div>
</header>

CSS 结构:

  body {
  margin: 0px;
  padding: 0px;
  font-size: 16px;
}
header {
  background-image: url(../img/bg-intro.svg);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 643px;
}
.wlogo {
  fill: white;
}
.svg-wrap {
  text-align: center;
  margin: 0 auto;
}
.key {
  height: 234px;
  position: relative;
  top: 200px;
}
.key-wrapper {
  display: block; 
  margin: auto;
}

注意:只需包裹应用必须设置为居中对齐的 CSS 的 SVG 标签的 div。