Answers for "add style in javascript for css"

add style javascript

// Bad:
element.setAttribute("style", "background-color: red;");
// Good:
element.style.backgroundColor = "red";

how to add css styles in javascript

const style = document.createElement(`style`);
    // this.shadowRoot.appendChild(this.templateContent);
    // log(`this.shadowRoot`, this.shadowRoot);
    style.setContent = `
      .run {
        width: 100px;
        height: 100px;
        background: url(https://www.boston.com/wp-content/uploads/2016/05/yuge_anger.png) 0 0;
        animation: run 500 step(6) infinite;
      }
      @keyframes run {
        from {
          background-position: 0 0;
        }
        to {
          background-position: -600px 0;
        }
      }
    `;