<el-color-picker 
     :popper-append-to-body='false' 
     class='picker-config' 
     v-model='formConfig.fullColor' 
     @active-change='fillColor'>
</el-color-picker>

<style lang='less'>
.el-color-dropdown {
  .el-color-dropdown__btns {
    .el-color-dropdown__link-btn {
      display: none !important;;
    }
  }
}
</style>

<style lang="scss" >
	.el-color-dropdown__link-btn-perform{
		display: none;
	}
</style>

let obj = document.querySelector(".el-color-dropdown__link-btn");
if(obj){
	obj.className = "el-color-dropdown__link-btn-perform";
}