html - 将内容置于中心

Question

我在将内容置于中心时遇到问题

.menuenglish {
  overflow: hidden;
  background-color: #3c769c;
  font-family: Arial;
  padding-left: 0px;
}

.menuenglish a {
  float: left;
  font-size: 16px;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.dropdown1 .dropbtn {
  cursor: pointer;
  font-size: 13px;
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
}

.dropdown1-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.dropdown1-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

<div class="hidden-md hidden-lg visible-xs visible-sm">
  <div class="menuenglish">
    <a href="#">Main Deal </a>
    <a href="#" title="E.E.E. Free">E.E.E. Free</a>
    <a href="#" title="Perfumes">Perfumes</a>
    <div class="dropdown1">
      <button class="dropbtn" onclick="myFunction()">More+</button>
      <div class="dropdown1-content" id="myDropdown">
        <a href="#" title="Mobiles">Mobiles</a>
        <a href="#" title="E-cards">E-cards</a>
      </div>
    </div>
  </div>
</div>

Answer 1

从 .menuenglish 制作一个 flexbox 并使用 justify-content: center。

.menuenglish {
  overflow: hidden;
  background-color: #3c769c;
  font-family: Arial;
  padding-left: 0px;
  display: flex;
  justify-content: center;
}

.menuenglish a {
  float: left;
  font-size: 16px;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.dropdown1 .dropbtn {
  cursor: pointer;
  font-size: 13px;
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
}

.dropdown1-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.dropdown1-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left;
}

<div class="hidden-md hidden-lg visible-xs visible-sm">
  <div class="menuenglish">
    <a href="#">Main Deal </a>
    <a href="#" title="E.E.E. Free">E.E.E. Free</a>
    <a href="#" title="Perfumes">Perfumes</a>
    <div class="dropdown1">
      <button class="dropbtn" onclick="myFunction()">More+</button>
      <div class="dropdown1-content" id="myDropdown">
        <a href="#" title="Mobiles">Mobiles</a>
        <a href="#" title="E-cards">E-cards</a>
      </div>
    </div>
  </div>
</div>