28V_1MHZ电子烟，无线鼠标，医疗器械等专用恒频升压转换器超小体积封装

文章目录

• • css
  • 鼠标放上去之前效果
  • 鼠标放上去时效果

css

<li class="message"></li>

.message {
  width: 22px;
  height: 22px;
  background-image: url('@/assets/message-01.png');
  background-size: cover;
  background-position: center;
  transition: background-image .3s ease;
  cursor: pointer;
}
.message:hover {
  background-image: url('@/assets/message-02.png');
}

鼠标放上去之前效果

鼠标放上去时效果