resistancemonitor/2.Web/static/css/upload.scss

$color: #c0c4cc;
.el-upload-dragger {
 background-color: transparent;
}
.el-upload__tip {
 color: red;
}
.el-upload-list__item-name {
 color: $color;
}
.el-upload-list__item:hover {
 background-color: rgba(96, 98, 102, 0.8);
 cursor: pointer;
}