custom-components-mobile/src/components/BotFloatButton/index.vue

<template>
    <div class="bot-float-button plr30">
        <van-button 
            v-bind="$attrs"
            :color="color" 
            round 
            type="primary" 
            block>
            <slot></slot>
        </van-button>
    </div>
</template>

<script>
export default {
    name: "BotFloatButton",
    props: {
        color: {
            type: String,
            default: "#17b3ec"
        }
    },
    components: {
        
    },
    watch:{
        
    },
    data(){
        return {
            
        }
    },
    mounted() {
        
    },
    methods: {
        
    },
};
</script>
<style lang="scss" scoped>
.bot-float-button{
    position: fixed;
    bottom: 20px;
    width: 100%;
}
</style>