How to Use HTML template> & slot> With Shadow DOM

HTML Standard html slot tag Generally speaking slot only references nodes from the light dom into the shadow dom And every element can only be in ONE slot If you wish html slot attribute HTML textarea ref To create a floating label textarea, a custom component is required to replace the default textarea

html5 slot game source code label slot: used for custom HTML labels; aria-label : used to provide a label for screen readers but adds no visible label Label Placement​ Labels will take