/* Font Awesome 图标库占位样式 */
.fa {
    display: inline-block;
    font: normal normal normal 14px/1 FontAwesome;
    font-size: inherit;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 常用图标定义 */
.fa-bars:before {
    content: "≡";
}

.fa-chevron-left:before {
    content: "‹";
}

.fa-chevron-right:before {
    content: "›";
}

.fa-weixin:before {
    content: "✓";
}

.fa-phone:before {
    content: "☎";
}

.fa-map-marker:before {
    content: "📍";
}

.fa-book:before {
    content: "📖";
}

.fa-arrow-right:before {
    content: "→";
}

/* 图标大小 */
.fa-lg {
    font-size: 1.33333333em;
    line-height: 0.75em;
    vertical-align: -15%;
}

.fa-2x {
    font-size: 2em;
}

.fa-3x {
    font-size: 3em;
}

.fa-4x {
    font-size: 4em;
}

.fa-5x {
    font-size: 5em;
}