按钮渐变边框

• inset inset 为简写属性，对应于 top、right、bottom 和 left 属性。其与 margin 简写属性具有相同的多值语法

INFO

inset 也可以居中

inset 居中

查看代码

<template>
  <div class="parent">
    <div class="child"></div>
  </div>
</template>

<style lang="less" scoped>
.parent {
  position: relative;
  height: 300px;
  .child {
    width: 50px;
    height: 50px;
    background-color: violet;
    position: absolute;
    inset: 0;
    margin: auto;
  }
}
</style>

translate 居中

查看代码

<template>
  <div class="parent">
    <div class="child"></div>
  </div>
</template>

<style lang="less" scoped>
.parent {
  position: relative;
  height: 300px;
  .child {
    width: 50px;
    height: 50px;
    background-color: violet;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }
}
</style>