.backend-content {
  position: relative;
  width: 100%;
  margin: 0px auto;
  padding: 0px;
  box-sizing: border-box;
}

.backend-row {
  width: 100%;
  margin: 0 auto;
}

.backend-row, .clearfix {
  zoom: 1;
}

.backend-row .sixteen {
  width: 98%;
  display: flex;
}

.column, .columns {
  float: left;
  min-height: 1px;
  position: relative;
}

article.post-holder {
  overflow: hidden;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: relative;
  cursor: pointer;
  width: 32.33%;
  -webkit-box-shadow: 0 0 8px 0 rgba(0,0,0,0.2);
  box-shadow: 0 0 8px 0 rgba(0,0,0,0.2);
  height: 33vh;
}

article.post-holder:not(:nth-child(3n)) {
  margin: 0 1.5% 1.5% 0;
}

.post-holder h2, .post-holder h2 .small {
  color: #fff;
  text-align: center;
}

article.post-holder .img-title {
  background-color: rgba(0,0,0, 0.2);
  width: 100%;
  height: 100%;
  position: absolute;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: end;
  -ms-flex-align: end;
  align-items: flex-end;
  display: flex;
  padding-bottom: 15px;
}


.popup {
  position: fixed;
  background-color: rgba(0,0,0,0.3);
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
}

.popup-container {
  width: 60%;
  margin: 50px 20% 0  20%;
  background-color: white;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  padding: 5%;
  position: relative;
  max-height: 70%;
  overflow: scroll;
}

.popup-container > div {
  width: 100%;
  font-size: 0.75rem;
}

#close {
  position: absolute;
  right: 15px;
  top: 15px;
  width: 15px;
  font-weight: bold;
  cursor: pointer;
}

.imagebox {
  display: flex;
  overflow: hidden;
  height: 30rem;
  justify-content: center;
  align-items: center;
}

.imagebox img {
  width: 100%;
}

.big.imagebox {
  cursor: pointer;
}

.big.imagebox img {
  width: auto;
  max-width: 100%;
  max-height: 100%;
}

.small.imagebox {
  height: 110px;
  border: 1px solid #999;
  flex: 0 0 23.9%;
  cursor: pointer;
}

.small.imagebox:not(:nth-child(4n)){
  margin-right: 1%;
}

.small.imagebox img {
  width: auto;
  max-height: 80px;
}

.small.imagebox:hover {
  border: 1px solid #23b0d3;
}

.bxslider {
  padding-left: 0;
  display: flex;
  flex-wrap: wrap;
  margin: 25px 0;
}

@media screen and (max-width: 767px) {
  article.post-holder h2 {
    color: #999999;
    margin-bottom: 50px;
    font-size: 5vw;
  }

  article.post-holder p {
    font-size: 3vw;
  }

  article.post-holder {
    width: 100%;
    margin: 0 0 5% 0;
  }

  .popup-container {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }

  .popup-container img {
    right: -30%;
    top: 10%;
    max-width: 210px;
    position: absolute;
  }


  .popup-container .fragen-antworten {
    margin-top: 25px;
  }
}