.splitpanel-vertical {
  display: flex;
  flex-direction: row;
  overflow: auto;
}

.splitpanel-vertical > *:first-child {
    max-width: calc(100% - 9px);
}

.splitpanel-vertical > * {
    flex: 0 0 auto;
    overflow: auto;
}

.splitpanel-vertical > *:last-child {
    flex: 1 1 auto;
    overflow: auto;
}

.splitpanel-horizontal {
  display: flex;
  flex-direction: column;
  overflow: auto;
}

.splitpanel-horizontal > *:first-child {
    max-height: calc(100% - 9px);
}

.splitpanel-horizontal > * {
    flex: 0 0 auto;
    overflow: auto;
}

.splitpanel-horizontal > *:last-child {
    flex: 1 1 auto;
    overflow: auto;
}


.splitter-vertical {
  flex: 0 0 auto;
  width: 9px;
  background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAhCAQAAABOpSL+AAAAIklEQVR4AWMwbb/PdR+JZDD9f1/oPhI5sgVGBSruc9xHIgGdSQqqQJGkRgAAAABJRU5ErkJggg==') center center no-repeat #cecece;
  cursor: col-resize;
}

.splitter-horizontal {
  flex: 0 0 auto;
  height: 9px;
  background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACEAAAAICAQAAADdTl4aAAAAIElEQVQoz2MwrTD9TxFsZ7jPcV+IIsjFQAUw6hFqegQA+xzRHT2p7pEAAAAASUVORK5CYII=') center center no-repeat #cecece;
  cursor: row-resize;
}

/* Dead Simple Grid (c) 2015 Vladimir Agafonkin */

.dsgrow .dsgrow { margin:  0 -1.5em; }
.dsgcol      { padding: 0  1.5em; }
.dsgcolf      { padding: 0  1.5em; }

.dsgrow:after {
    content: "";
    clear: both;
    display: table;
}

@media only screen {

.dsgcol {
    float: left;
    width: 100%;
    box-sizing: border-box;
}
.dsgcol::before {
   content: "\200B";
}

.dsgcolf {
    float: left;
    box-sizing: border-box;
}
.dsgcolf::before {
   content: "\200B";
}

}