* {  
  -webkit-box-sizing:border-box;
  -moz-box-sizing:border-box;
  box-sizing:border-box;
  margin:0;
  padding: 0;
}

/*.box:after  {
  clear:both;
  content:".";
  display:block;
  height:0;
  line-height:0;
  overflow: hidden;
  visibility:hidden;
}*/

.box {
  clear: both;
  padding: 0.6rem 0.6rem;
  margin: 0.7rem 0.7rem;
  background-color: #666666;
  border-radius: 8px;
  color: #fff;
  /* ВАЖНО! display: block;*/
}

.picture {
  border:0;
  display:block;
  height:auto;
  max-width:100%;
  width:auto;
  margin-right: auto;
  margin-left: auto;
}

.middle {text-align: center; padding: 0 auto; margin: 0 auto;}
.bottom {margin-bottom: 0; padding-bottom: 0.3rem; margin-top: 0; padding-top: 0.3rem;}
.top {margin-top: 0.5rem;}

.buttonQuest {margin-left: 1rem; margin-top: 1rem;}

.feedback {
  background-color : #666666;
  color: #ffff80;
  padding: 10px 20px;
  border-color: #fff;
  border-radius: 6px;
  opacity: 0.8;
}

#mybutton {
  position: fixed;
  bottom: 4rem;
  right: 1rem;
  z-index: 2;
}

.flex {
  display: flex; flex-wrap: wrap; justify-content: space-around;
}