.custom-icon{
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position: center;
    display: inline-block;
} 
.custom-icon-filtersearch{
    width: 32rpx;
    height: 32rpx;
    background-image: url('https://img.liche.cn/lichebao/icon-filtersearch.png');
}
.custom-icon-logout{
    width: 32rpx;
    height: 32rpx;
    background-image: url('https://img.liche.cn/lichebao/icon-logout.png');
}
.custom-icon-scancode{
    width: 24rpx;
    height: 24rpx;
    background-image: url('https://img.liche.cn/lichebao/icon-scancode.png');
}