html - 中心 float /内联 block div，父容器内有边距自动

Question

这个问题已经被问过很多次了，但我仍然没有运气。我有一个容器可以加载缩略图。我试图将缩略图的边距设置为自动，但我没有成功。拇指将在容器内居中，但边距不会。

.align-contents{
    width: 100%;
  display: block;
  margin: 0 auto;
  text-align: center;
}
.profile.align{
    display: inline-block;
    position:relative;
    margin:auto auto;
}
.profile{
    text-align:center;
    height:auto;
}
.profile.align .PP{
    width:60px;
    height:60px;
    border:solid 3px #FFF;
    -moz-border-radius:200px; 
    -webkit-border-radius:200px; 
    border-radius:200px;
    position:relative;
    z-index:1;
    background-repeat:no-repeat;
    background-size:cover;
    background-position:center center;
    background-image:url(http://www.coopercarry.com/wp-content/themes/coopercarry/img/article-thumb.png);
}
.profile.align .status{
    width:20px;
    height:20px;
    right:0px;
    position:absolute;
    bottom:0px;
    border:solid 3px #FFF;
    -moz-border-radius:20px; 
    -webkit-border-radius:20px; 
    border-radius:20px;
    background:blue;
    z-index:2;
}

JS Fiddle

缩略图在父级旁边居中，但有没有办法设置 margin:auto 以便自动设置 div 之间的空间

Answer 1

Flexbox可以做到这一点。

.align-contents {
  width: 100%;
  display: block;
  margin: 0 auto;
  text-align: center;
  border: 1px solid red;
  display: flex;
  justify-content: space-between;
}
.profile.align {
  position: relative;
  border: 1px solid grey;
}
.profile {
  text-align: center;
  height: auto;
}
.profile.align .PP {
  width: 60px;
  height: 60px;
  border: solid 3px #FFF;
  -moz-border-radius: 200px;
  -webkit-border-radius: 200px;
  border-radius: 200px;
  position: relative;
  z-index: 1;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  background-image: url(http://www.coopercarry.com/wp-content/themes/coopercarry/img/article-thumb.png);
}
.profile.align .status {
  width: 20px;
  height: 20px;
  right: 0px;
  position: absolute;
  bottom: 0px;
  border: solid 3px #FFF;
  -moz-border-radius: 20px;
  -webkit-border-radius: 20px;
  border-radius: 20px;
  background: blue;
  z-index: 2;
}

<div class="align-contents">
  <div class="profile align">
    <div class="PP"></div>
    <div class="status"></div>
  </div>
  <div class="profile align">
    <div class="PP"></div>
    <div class="status"></div>
  </div>
  <div class="profile align">
    <div class="PP"></div>
    <div class="status"></div>
  </div>
  <div class="profile align">
    <div class="PP"></div>
    <div class="status"></div>
  </div>
</div>