var min=12;
var max=18;
function increaseFontSize() {
 
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
 
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=max) {
 
         s += 1;
      }
      p[i].style.fontSize = s+"px"
 
   }
   
   var info = document.getElementsByClassName('info-text');
   for(i=0;i<info.length;i++) {
 
      if(info[i].style.fontSize) {
         var s = parseInt(info[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=max) {
 
         s += 1;
      }
      info[i].style.fontSize = s+"px"
 
   }
   
   var h4 = document.getElementsByClassName('h4');
   for(i=0;i<h4.length;i++) {
 
      if(h4[i].style.fontSize) {
         var s = parseInt(h4[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 13;
      }
      if(s!=max) {
 
         s += 1;
      }
      h4[i].style.fontSize = s+"px"
 
   }
   
     var greenb = document.getElementsByClassName('green-bullet');
   for(i=0;i<greenb.length;i++) {
 
      if(greenb[i].style.fontSize) {
         var s = parseInt(greenb[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=max) {
 
         s += 1;
      }
      greenb[i].style.fontSize = s+"px"
 
   }
   
}/*end of increase font size*/

function decreaseFontSize() {
   var p = document.getElementsByTagName('p');
   for(i=0;i<p.length;i++) {
 
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=min) {
 
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
 
   }
   
    var info = document.getElementsByClassName('info-text');
   for(i=0;i<info.length;i++) {
 
      if(info[i].style.fontSize) {
         var s = parseInt(info[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=min) {
 
         s -= 1;
      }
      info[i].style.fontSize = s+"px"
 
   }
   
   var h4 = document.getElementsByClassName('h4');
   for(i=0;i<h4.length;i++) {
 
      if(h4[i].style.fontSize) {
         var s = parseInt(h4[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 13;
      }
      if(s!=min) {
 
         s -= 1;
      }
      h4[i].style.fontSize = s+"px"
 
   }
   
   var greenb = document.getElementsByClassName('green-bullet');
   for(i=0;i<greenb.length;i++) {
 
      if(greenb[i].style.fontSize) {
         var s = parseInt(greenb[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=min) {
 
         s -= 1;
      }
      greenb[i].style.fontSize = s+"px"
 
   }
   
}/* end of decrease font size*/