vue-code-diff side-by-side 左右不对齐

解决方案：设置行高

<style scoped lang="less">
/deep/ .d2h-info {
  height: 18px;
}
/deep/ .d2h-wrapper .d2h-code-side-line,
.d2h-wrapper .d2h-code-line {
  height: 18px;
}
/deep/ .d2h-code-line-prefix,
.d2h-code-linenumber,
.d2h-code-side-linenumber,
.d2h-emptyplaceholder {
  height: 18px;
}
</style>