问如何将DT和dd的样式设计成同一行？

dl.inline dd {
  display: inline;
  margin: 0;
}
dl.inline dd:after{
  display: block;
  content: '';
}
dl.inline dt{
  display: inline-block;
  min-width: 100px;
}

dl.inline-flex {
  display: flex;
  flex-flow: row;
  flex-wrap: wrap;
  width: 300px;      /* set the container width*/
  overflow: visible;
}
dl.inline-flex dt {
  flex: 0 0 50%;
  text-overflow: ellipsis;
  overflow: hidden;
}
dl.inline-flex dd {
  flex:0 0 50%;
  margin-left: auto;
  text-align: left;
  text-overflow: ellipsis;
  overflow: hidden;
}

dl {
  width: 100%;
  overflow: hidden;
  background: #ff0;
  padding: 0;
  margin: 0
}
dt {
  float: left;
  width: 50%;
  /* adjust the width; make sure the total of both is 100% */
  background: #cc0;
  padding: 0;
  margin: 0
}
dd {
  float: left;
  width: 50%;
  /* adjust the width; make sure the total of both is 100% */
  background: #dd0
  padding: 0;
  margin: 0
}

<dl>
  <dt>Mercury</dt>
  <dd>Mercury (0.4 AU from the Sun) is the closest planet to the Sun and the smallest planet.</dd>
  <dt>Venus</dt>
  <dd>Venus (0.7 AU) is close in size to Earth, (0.815 Earth masses) and like Earth, has a thick silicate mantle around an iron core.</dd>
  <dt>Earth</dt>
  <dd>Earth (1 AU) is the largest and densest of the inner planets, the only one known to have current geological activity.</dd>
</dl>