css binding vuejs essential

https://codepen.io/edward1995/pen/JrYMXj

  
  

    

      
      {{value}}
    
  
  
  

    

      {{item}}
    
  

body {
  background-color: linen;
}
.selected {
  background-color: lightblue;
}
.underlined{
  text-decoration: underline;
}
.overline{
  text-decoration: overline
}
.line-through{
  text-decoration: line-through
}

.line-through{
  text-decoration: line-through
}

new Vue({
  el: '#app',
  data:{
    selected: 'Home',
    menuItems: ['Home', 'About', 'Contact'],
    classArray: [
      'selected',
      'overline',
      'line-through',
      'underlined',
      'none'
      ],
    classselected: 'none',
  }
})