:root{
  --kb-fa-font:'Vazirmatn','IRANSansX','Yekan Bakh','Peyda',Tahoma,Arial,sans-serif;
}
html,body,
button,input,select,textarea,optgroup,option,
a,p,span,b,strong,small,label,
h1,h2,h3,h4,h5,h6,
table,thead,tbody,tfoot,tr,th,td,
article,section,nav,header,footer,aside,main,div{
  font-family:var(--kb-fa-font)!important;
}
input::placeholder,textarea::placeholder{font-family:var(--kb-fa-font)!important}
body{font-kerning:normal;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
h1,h2,h3,h4,h5,h6,b,strong{letter-spacing:-.015em}