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My flexbox container has extra padding in Firefox [duplicate]

Tags:

html

css

firefox

flexbox

I'm trying to create a layout with tabs and an unordered list which expands vertically to 100% of its container's height. I managed to get it working as expected in Chrome and even IE11 without much trouble.

However, Firefox seems to have a bit of a quirk where the UL expands about 20px outside of its container in my case.

View Plnkr Test Case

Screenshot of what's happening: enter image description here

HTML:

<!DOCTYPE html>
<html>

<head>
  <link rel="stylesheet" href="style.css">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
  <script src="script.js"></script>
</head>

<body>
  <div id="wrapper">
    <header>Some header...</header>
    <div class="board-panel">
      <div id="board-list">
        <ul class="lobby-tabs nav nav-tabs">
          <li ng-class="{active: activeTab == 'favorites'}">
            <a ng-click="switchTab('favorites')">Favorites</a>
          </li>
          <li ng-class="{active: activeTab == 'public'}">
            <a ng-click="switchTab('public')">Public</a>
          </li>
          <li ng-class="{active: activeTab == 'private'}">
            <a ng-click="switchTab('private')">Private</a>
          </li>
          <li class="pull-right" ng-class="{active: activeTab == 'create'}">
            <a ng-click="switchTab('create')">Create a Board</a>
          </li>
        </ul>
        <div ng-show="activeTab != 'create'">
          <div class="board-controls">
            <button class="btn btn-default pull-right" ng-click="refresh()">
              <i class="glyphicon glyphicon-refresh"></i> Refresh
            </button>
          </div>
          <ul class="list-group">
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
            <li class="list-group-item" ng-repeat="item in items | filter: filter track by $index">Some item...</li>
          </ul>
        </div>
      </div>
    </div>
  </div>
</body>

</html>

CSS:

html,
body,
#wrapper {
  height: 100%;
}

#wrapper {
  display: flex;
  flex-direction: column;
}

#wrapper > header {
  height: 50px;
  flex: 0;
  background: rgba(129, 219, 255, 1);
}

#wrapper > div {
  flex: 1;
  background: rgba(129, 219, 255, 0.5);
  max-height: 100%;
}

#board-list {
  display: flex;
  flex-direction: column;
  background: #eee;
  height: 100%;
  max-height: 100%;
  overflow: hidden;
  width: 476px;
  margin: 0 auto;
}

#board-list > div {
  border: 1px solid #AAB3B3;
  border-top: none;
  display: flex;
  flex: 1;
  flex-direction: column;
  height: 100%;
  max-height: 100%;
}

.board-controls {
  padding: 5px 10px;
  background: #F1F1F1 none repeat scroll 0% 0%;
}

.board-controls .filter-label {
  margin: 10px 5px 10px 0;
  font-weight: 700;
  float: left;
}

.list-group {
  overflow-y: scroll;
}

View Plnkr Test Case

like image 801
user1960364 Avatar asked Oct 20 '22 07:10

user1960364

1 Answers

This is because the way Firefox handles min/max width/height in flex elements changed in version 34 in response to an update in the Flexbox spec:

To provide a more reasonable default minimum size for flex items, this specification introduces a new auto value as the initial value of the min-width and min-height properties defined in CSS 2.1.

To fix it, you'll need to add min-height: 0; to your #item-list > div selector to override the default value of auto that Firefox uses:

JSFiddle Example

html, body {
    height: 100%;
}
#wrapper {
    height: 50%;
    background: #EAF9FF;
}
#item-list {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #B8E8F8;
    width: 476px;
    margin: 0 auto;
    padding: 10px;
}
#item-list > .nav-tabs {
    border: none;
}
#item-list > div {
    display: flex;
    flex: 1;
    flex-direction: column;
    height: 100%;
    max-height: 100%;
    background: #9FD9F0;
    padding: 10px;
    min-height: 0; /* This property is new */
}
.list-group {
    overflow-y: scroll;
    background: #82C8E0;
    padding: 10px;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
<div id="wrapper">
    <div id="item-list">
        <ul class="nav nav-tabs">
            <li><a href="#">tab1</a></li>
            <li><a href="#">tab2</a></li>
            <li><a href="#">tab3</a></li>
            <li class="pull-right"><a href="#">tab4</a></li>
        </ul>
        <div ng-show="activeTab != 'create'">
            <ul class="list-group">
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
                <li>Some item...</li>
            </ul>
        </div>
    </div>
</div>

I guess other browsers haven't updated to match the spec yet, or they've updated and also adjusted their flexbox implementations to compensate? I'm not sure.

like image 163
TylerH Avatar answered Oct 27 '22 19:10

TylerH

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