body {
    display: initial;
}

body > * {
    overflow: initial;
}

.at-wrap {
     /* height: auto;
 overflow:visible;*/
/* height: 99.9%;*/ /*  180vh; */
 margin: 0;
}

.at-content {
    overflow:visible;
}

.at-footer {
   /*  position: sticky; */
    width: 100%;
    bottom: 4px;
    left: 0;
    z-index: 1002;
}

.at-viewport {
    position:initial;
    top:initial;
    margin-left:70px;
    right:initial;
    bottom:initial;
}

.at-viewport {
    overflow-y: auto;
    position: absolute;
    top: 0;
   /* left: 70px;*/
    right: 0;
    bottom: 0;
  /*  padding-right: 20px;*/
}