顶部带有意外空白的 Flexbox

Question

我的 flexbox 无法一直填充到我的导航栏时遇到问题，我终其一生都无法弄清楚，负边距完全没有任何作用

这是截图

.hero {
  background-image: url("https://unsplash.it/1500?random");
  background-size: cover;
  background-position: center;
  width: 100%;
  height: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  margin-top: -10px;
}

.hero>.center-content {
  width: 400px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  margin: auto;
}

.hero>.center-content h1,
.center-content h3 {
  color: white;
  line-height: 1;
}

.hero>.center-content h1 {
  text-transform: uppercase;
  font-size: 3em;
  margin-bottom: 0;
  text-align: center;
}

.hero>.center-content h3 {
  margin-bottom: 40px;
  font-size: 1.5em;
  font-weight: normal;
}

.center-content>.button {
  text-transform: uppercase;
  color: white;
  padding: 20px;
  border: 1px solid white;
  text-decoration: none;
}

.center-content>.button:hover {
  background-color: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.7);
  color: #006594;
}

<div class="container" id="heroImage">
  <div class="hero">
    <div class="center-content">
      <h1>Lazris</h1>
      <h3>Revive Your Web Presence</h3>
      <a href="#" class="button">Some Action Here</a>
    </div>
  </div>
</div>

Answer 1

删除活动菜单上的顶部边距

.nav > .active {
    /** margin-top: 10px; Remove **/
}