checkbox隐藏不掉

<template><div :class="['todo-item', todo.completed ? 'completed' : '']"><inputtype="checkbox"class="toggle"v-model="todo.completed"><label>{{ todo.content }}</label><button class="destroy" @click="deleteTodo"></button></div></template><script>export default {props: {todo: {type: Object,required: true}},methods: {deleteTodo() {this.$emit('del', this.todo.id);}}}</script><style lang="stylus" scoped>.todo-item {position: relative;background-color: #fff;font-size: 24px;border-bottom: 1px solid rgba(0, 0, 0, 0.06);&:hover {.destroy:after {content: 'x'}}label {white-space: pre-line;word-break: break-all;padding: 15px 60px 15px 15px;margin-left: 45px;display: block;line-height: 1.2;transition: color 0.4s;}&.completed {label {color: #d9d9d9;text-decoration: line-through;}}}.toggle {text-align: center;width: 40px;height: 40px;position: absolute;top: 0;bottom: 0;margin: 0 auto;appearance: none;outline: none;border: none;&:after {content: url('../assets/images/round.svg');}&:checked:after {content: url('../assets/images/done.svg');}}.destroy {position: absolute;top: 0;right: 10px;bottom: 0;width: 40px;height: 40px;margin: 0 auto;font-size: 30px;color: #cc9a9a;margin-bottom: 11px;transition: color 0.2s ease-out;background-color: transparent;appearance: none;border-width: 0;cursor: pointer;outline: none;}</style>