4dkankan-components/docs/examples-bk/image/placeholder.vue

<template>
    <div class="demo-image__placeholder">
        <div class="block">
            <span class="demonstration">Default</span>
            <el-image :src="src" />
        </div>
        <div class="block">
            <span class="demonstration">Custom</span>
            <el-image :src="src">
                <template #placeholder>
                    <div class="image-slot">Loading<span class="dot">...</span></div>
                </template>
            </el-image>
        </div>
    </div>
</template>

<script lang="ts" setup>
const src = 'https://cube.elemecdn.com/6/94/4d3ea53c084bad6931a56d5158a48jpeg.jpeg'
</script>

<style scoped>
.demo-image__placeholder .block {
    padding: 30px 0;
    text-align: center;
    border-right: solid 1px var(--el-border-color);
    display: inline-block;
    width: 49%;
    box-sizing: border-box;
    vertical-align: top;
}
.demo-image__placeholder .demonstration {
    display: block;
    color: var(--el-text-color-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}
.demo-image__placeholder .el-image {
    padding: 0 5px;
    max-width: 300px;
    max-height: 200px;
}

.demo-image__placeholder.image-slot {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    background: var(--el-fill-color-light);
    color: var(--el-text-color-secondary);
    font-size: 14px;
}
.demo-image__placeholder .dot {
    animation: dot 2s infinite steps(3, start);
    overflow: hidden;
}
</style>