This post was updated 380 days ago and some of the ideas may be out of date.

先上代码

CSS

.mask {
    background-color: #252525;
    color: #252525;
    transition: color 0.5s;
}

.mask:hover {
    color: #ffffff;
}

HTML 例

<p>这是测试<span class="mask">并且被掩盖的</span>文字！</p>

例

这是测试并且被掩盖的文字！