conflict between flex and fload

by Nick Wang

HTML

<div class="flex">
  <div>
    left part
  </div>

  <div class="right">
    right part
  </div>
</div>

CSS

.title {
  color: #669988;
  font-size: 18px;
  padding: 15px;
}
.flex {
  width: 400px;
  height: 200px;
  border: 2px solid #0099CC;
  background:#99CCCC;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}
.flex div {
  border: 1px solid #CC3333;
  width: 100px;
  height: 30px;
}

.right {
  float: right;
}