当@font-face出现后第一个字体图标glyphicon-envelope出现问题是什么问题
<style>
.glyphicon-envelope{
color: red;
font-size: 100px;
}
@font-face{
font-family:'Glyphicons Halflings';
src:url(fonts/glyphicons-halflings-regular.eot);
src:url(fonts/glyphicons-halflings-regular.eot?#iefix) format('embedded-opentype'),
url(fonts/glyphicons-halflings-regular.woff2) format('woff2'),
url(fonts/glyphicons-halflings-regular.woff) format('woff'),
url(fonts/glyphicons-halflings-regular.ttf) format('truetype'),
url(fonts/glyphicons-halflings-regular.svg#glyphicons_halflingsregular) format('svg')}
</style>
</head>
<body>
<!--字体图标,放大不会失真bootstrap组件Glyphicons 字体图标;阿里巴巴矢量图标库-->
<span class="glyphicon glyphicon-envelope"></span>
<button class="btn btn-default">
<span class="glyphicon glyphicon-star"></span>这是一个按钮
</button>