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我有一个由md标题和可滚动md卡内容组成的md卡。随着可滚动内容变得越来越高，出于某种原因，标题变得越来越小。卡的宽度可能会更改，并且标题可能会缠绕到2或3行，因此标题上的最小高度不是解决方案。问题存在于最新的IE和Chrome中，而不是FF。带有可滚动内容的角度材质md卡
点击“添加5行”按钮几次，查看标题缩水
http://plnkr.co/edit/wgBKnXh7FSn1VLO8mST0?p=preview
<html>
<head>
<title>angular material</title>
<link rel="stylesheet" href="https://rawgit.com/angular/bower-material/master/angular-material.css">
</head>
<body ng-app="app" ng-controller="ctrl" layout="column" layout-fill>
<md-card style="height: 200px; width: 500px">
<md-card-header style="border-bottom: 1px solid grey">
<md-card-header-text>
<span class="md-title">Long Header Long Header Long Header Long Header Long Header Long Header Long Header Long Header </span>
</md-card-header-text>
</md-card-header>
<md-content-card style="overflow-y: auto" >
<ul>
<li ng-repeat="x in getArray() track by $index"></li>
</ul>
</md-content-card>
</md-card>
<button style="width: 200px" ng-click="addRows()">
Add 5 Rows
</button>
<!-- Angular Material Dependencies -->
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular-animate.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular-aria.js"></script>
<!-- Angular Material Javascript using RawGit to load directly from `bower-material/master` -->
<script src="https://rawgit.com/angular/bower-material/master/angular-material.js"></script>
<script>
var app = angular.module('app', ['ngMaterial']);
app.controller("ctrl", function($scope) {
$scope.rows = 0;
$scope.addRows = function() {
$scope.rows += 5;
};
$scope.getArray = function() {
return new Array($scope.rows);
};
});
</script>
</body>
</html>