实现0.5px的圆角边框按钮

效果
<template>
    <!-- 边框和文字是有颜色的圆角按钮 -->
    <button v-on="$listeners" class="blankButton">
        <slot />
    </button>
</template>

<style lang="scss" scoped>
.blankButton {
    $color: #437cee;
    background: #fff;
    padding: 0 12px;
    height: 26px;
    color: $color;
    font-size: 14px;
    line-height: 16px;
    font-family: fzlt;
    text-align: center;

    &:after {
        content: ' ';
        border: 1px solid $color;
        border-radius: 26px;
        transform: scale(0.5);
        position: absolute;
        top: -50%;
        right: -50%;
        left: -50%;
        bottom: -50%;
    }
}
</style>