CSS how to make an element fade in and then fade out?

Question

I can make an element with an opacity of zero fade in by changing its class to .elementToFadeInAndOut with the following css:

.elementToFadeInAndOut {
    op         


        

Answer 1

I found this link to be useful: css-tricks fade-in fade-out css.

Here's a summary of the csstricks post:

CSS classes:

.m-fadeOut {
  visibility: hidden;
  opacity: 0;
  transition: visibility 0s linear 300ms, opacity 300ms;
}
.m-fadeIn {
  visibility: visible;
  opacity: 1;
  transition: visibility 0s linear 0s, opacity 300ms;
}

In React:

toggle(){
    if(true condition){
        this.setState({toggleClass: "m-fadeIn"});
    }else{
        this.setState({toggleClass: "m-fadeOut"});
    }
}

render(){
    return (
Element to be toggled
)
}