var min=12;var max=18;function increaseFontSize(){var p=document.getElementsByClassName('post');for(i=0;i<p.length;i++){if(p[i].style.fontSize){var s=parseInt(p[i].style.fontSize.replace("px",""));}else{var s=13;}
if(s!=max){s+=1;}
p[i].style.fontSize=s+"px"}}
function decreaseFontSize(){var p=document.getElementsByClassName('post');for(i=0;i<p.length;i++){if(p[i].style.fontSize){var s=parseInt(p[i].style.fontSize.replace("px",""));}else{var s=13;}
if(s!=min){s-=1;}
p[i].style.fontSize=s+"px"}}