SVG

<img
  referrerpolicy="no-referrer"
  src="~@/assets/svg/intelligent-chat/icon_user.svg"
/>

背景图

background: url(@/assets/img/login_img/input_bg2.png) 100% no-repeat;
background-position: top left;
background-size: cover;
background-size: 100% 100%;

鼠标小手

 cursor: pointer;

渐变色

 background: linear-gradient(to bottom,#3293fd,#e2ebf800);

定位居中

父级
 position: relative;
子集
 position: absolute;
 top: 0;
 right: 0;
 bottom: 0;
 left: 0;
 margin: auto;