Flexbox中心和右下角的项目

Question

我正在尝试使用flexbox实现以下结果：

我尝试使用以下HTML，但我无法让它工作。

<div class=" flex-center">
    <div class="flex-item-center">
        <p>
            Some text in box A
        </p>
    </div>
    <div class="flex-item-bottom">
        <p>Some text in box B....</p>
    </div>
</div>

CSS：

.flex-center {
  display: flex;
  align-items: center;
  align-content: center;
  justify-content: center;
}
.flex-item-center {
  align-self: center;
}

.flex-item-bottom {
  align-self: flex-end;
}

如何让它看起来像图像？

Answer 1

我已经找到了一个可行的解决方案。

.flex-center {
  background-color: #739FD0;
  color: #000000;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-content: center;
  align-items: center;
  height: 400px;
}
.flex-center-bottom {
  background-color: #739FD0;
  color: #000000;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-content: center;
  align-items: center;
}
.flex-item-center {
  border: solid 2px #4675AA;
  order: 0;
  flex: 0 1 auto;
  align-self: center;
}
.flex-item-bottom {
  border: solid 2px #4675AA;
  order: 1;
  flex: 0 1 auto;
  align-self: flex-end;
}

<div class="flex-center">
  <div class="flex-item-center">
    <p>DROP FILES HERE</p>
  </div>
</div>
<div class="flex-center-bottom">
  <div class="flex-item-center">
    <p>Hint: You can also drop files in the all files page</p>
  </div>
</div>

2017年更新：在Google Chrome中进行测试Versión62.0.3202.89（Build oficial）（32位）。

.flex-center,
.flex-center-bottom {
  align-items: center;
  background-color: #739FD0;
  color: #000000;
  display: flex;
}

.flex-center {
  height: 400px;
  justify-content: center;
}

.flex-center-bottom {
  justify-content: flex-end;
}

.flex-item-center {
  border: solid 2px #4675AA;
  font-family: Arial, sans-serif;
  font-size: 1.6em;
  line-height: 1px;
  padding: 0 3px;
}

<div class="flex-center">
  <div class="flex-item-center">
    <p>Some text in box A</p>
  </div>
</div>
<div class="flex-center-bottom">
  <div class="flex-item-center">
    <p>Some text in box B...</p>
  </div>
</div>

我希望这会对你有所帮助。

Answer 2

这是你在找什么？ http://jsfiddle.net/DIRTY_SMITH/q12bh4se/6/

body {
  background-color: lightblue;
}

#main {
  width: 100%;
  height: 400px;
  border: 1px solid black;
  display: -webkit-flex;
  /* Safari */
  -webkit-align-items: flex-start;
  /* Safari 7.0+ */
  display: flex;
  align-items: flex-start;
}

#main div {
  -webkit-flex: 1;
  /* Safari 6.1+ */
  flex: 1;
}

.flex-item-center {
  margin-left: 40%;
  border-style: solid;
  -webkit-align-self: center;
  /* Safari 7.0+ */
  align-self: center;
}

.flex-item-bottom {
  border-style: solid;
  align-self: flex-end;
}

Answer 3

在Bootstrap 4.x中，您可以使用utility classes

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
  <div class="row">
    <div class="col-12">
      <div class="d-flex justify-content-center h-100">
        <div class="d-flex align-items-center">center center</div>
      </div>
      <div class="d-flex justify-content-end h-100">
        <div class="d-flex align-items-end">right bottom</div>
      </div>
    </div>
  </div>
</div>

Answer 4

尝试：

#main-wrapper {
  background: blue;
  width: 100%;
  height: 100%;
  min-height: 300px;
  display: flex;
  align-items: center;
}

.x-center {
  display: flex;
  justify-content: center;
}

.y-center {
  flex: 1;
}

.x-right {
  justify-content: flex-end;
}

.y-bottom {
  align-self: flex-end;
}

.small-div {
  padding: 10px;
}

<div id="main-wrapper">
  <div class="x-center y-center small-div">Center center</div>
  <div class="x-right y-bottom small-div">Bottom Right</div>
</div>

注意：

align-self不适用于IE10或更低版本。 有人知道如何在不增加位置的情况下使中心div向左多一点吗？谢谢