JSFiddle - React, Tailwind, and code Playground

HTML

<a id="log" href="#">text</a>
      <form id="form" action="" method="post">
            <input type="text" name="id"/>
            <input type="submit" name="submit"/>  
      </form>

CSS

#form{
    opacity:0;
    filter:alpha(opacity=0); /*For IE8*/
}
#log:hover ~ #form {
    opacity: 1;
    filter:alpha(opacity=100); /*For IE8*/
}