Sascha Schulz
2024-04-10 f67632bb3cd2ea7bee7cc5e3ca342140455495ab
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class HelloWorldComponent extends HTMLElement {
    constructor() {
        super();
    }
 
    connectedCallback() {
        const shadowRoot = this.attachShadow({mode: "open"});
 
        shadowRoot.innerHTML = `
            <style>
                div {
                    background-color: coral;
                    color: white;
                }
            </style>
            <div>Hello World!</div>
        `;
    }
}
 
window.customElements.define("hello-world", HelloWorldComponent);