md/src/components/Loading.vue

<template>
    <div class="loading" id="loading">
        <div class="loading-wrapper">
            <div class="loading-anim"></div>
            <div class="loading-text">致力于让 Markdown 编辑更简单</div>
        </div>
    </div>
</template>

<script>
</script>

<style lang="less" scoped>
.loading-wrapper {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
}
.loading {
    text-align: center;
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 99999;
    background-color: #f2f2f2;
}

.loading_night {
    background-color: #303133;
}

.loading-text {
    font-size: 18px;
    font-weight: bold;
    margin-top: 26px;
    color: #303133;
}

.loading-anim {
    display: inline-block;
    width: 100px;
    height: 100px;
    background: url('../assets/images/favicon.png') no-repeat;
    background-size: cover;
}
</style>