Function get all class with same name more width and height

setAtributte-and-value.js

function setDisplay(className, widthValue, heightValue) {
  //Get All Class same name
  var items = document.getElementsByClassName(className);
  
  //Loop to Class
  for (var i=0; i < items.length; i++) {
    //Change Attributes Width and Height
    items[i].style.width = widthValue;
    items[i].style.height = heightValue;
  }
}

//Callback with parameters
setDisplay('wp-caption', '100%', 'auto')