小编JLT*_*JLT的帖子

html {
  font-size: 20px;
}

.box {
  color: white;
  font-size: 100px;
  text-align: center;
  text-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
  padding: 10px;
  Margin: 5px;
  /*  width: calc(33.33% - 10px);*/
}


/* Flexbox code starts here */

.container {
  display: flex;
  /*Must!!!! on the container, in order to turn it to flex*/
  flex-direction: column;
  flex-wrap: wrap;
  justify-content: center;
} …