@media only screen and (max-width:39.9em) {
 
    div.cell div.valueDetail.block div.feedable-page-head + div.flex {
        overflow: auto;
        height: calc(100% - 1.5em); 
        max-height: calc(100% - 1.5em);
        width: calc(100% - 2px);
    }

        div.valueDetail.block div.feedable-page-head + div.flex div.cell {
            height: calc(100% - 4px);
            max-height: calc(100% - 4px);
        }

    div.cell div.oneValue div.valueDetail.block.edit-mode, 
    div.cell .dynamic.edit-mode {
        position: absolute;
        top: 0;
        left: 1px;
        max-height: calc(100vh - 1.3em);
        overflow: auto;
        margin:1.3em 0 50vh 0 !important;
        background: #eee;
        z-index: 99999!important;
        width: calc(100% - 5px);
        box-shadow: inset 0 0 5px #000;
        -moz-box-shadow: inset 0 0 5px #000;
        -webkit-box-shadow: inset 0 0 5px #000;
    }   
}