html - Overflow-x in nested flexbox -


this question has answer here:

i'm trying make central panel scrollable area (x , y) within nested flexbox item.

html,  body {    width: 100%;    height: 100%;    margin: 0;    color: #fff;  }    .layout {    display: flex;    align-items: stretch;    flex-wrap: nowrap;    width: 100%;  }    .layout.horizontal {    flex-direction: row;  }    .layout.vertical {    flex-direction: column;  }    .pane {    position: relative;    flex: 1;  }    .fill {    min-height: 100%;    height: 100%;  }    .scrollable {    overflow-x: auto;    overflow-y: auto;  }    .content {    background-color: salmon;    display: flex;    justify-content: center;    align-items: center;    width: 200px;    height: 200px;  }      /* colour highlighting */    .layer1 > .pane:nth-child(1) {    background-color: steelblue;  }    .layer1 > .pane:nth-child(2) {    background-color: plum;  }    .layer1 > .pane:nth-child(3) {    background-color: lightsteelblue;  }    .layer2 > .pane:nth-child(1) {    background-color: darkseagreen;  }    .layer2 > .pane:nth-child(2) {    background-color: seagreen;  }    .layer2 > .pane:nth-child(3) {    background-color: lightseagreen;  }
<div class="layout horizontal fill layer1">    <div class="pane">      left    </div>    <div class="pane">      <div class="layout vertical fill layer2">        <div class="pane">          top        </div>        <div class="pane scrollable">          <div class="content">content</div>        </div>        <div class="pane">          bottom        </div>      </div>    </div>    <div class="pane">      right    </div>  </div>

note: expand sample full window mode.

in non-nested scenarios horizontal scrolling works fine central panel:

horizontal flexbox example

vertical flexbox example

however when nested, horizontal scrolling central panel not activate expected. seems case chrome, firefox , edge. funnily enough works expected in ie11, suggests modern browsers correctly interpreting specification unknown me.

what missing?

update: seems setting overflow:auto on outer central column required. behaves expected. why this?

don't know if know want, did try put @media in css , put overflow-x:scroll?


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