.banneralt {
    width: 100%;
    float: left;
    margin-top: 88px;
  }
  
  
  #navigationarea {
  
    background-color: #333
  }
  
  
  
  .negativeblock:before {
      content: "";
      position: absolute;
      left: 0px;
      width: 100%;
      height: calc(100% + 64px);
      top: 0px;
      right: 0;
      bottom: 0;
      transform: skewY(0deg);
      transform-origin: 0% 0;
      backface-visibility: hidden;
      background: #fff;
  }
  
  
  
  .negativeblock {
   margin-top: 0px;
   padding-top: 32px;
  
  }