@font-face {
  font-family: IS;
  src: url('eot/IRANSansWeb.eot') format('eot'),  /* IE6–8 */
       url('ttf/IRANSansWeb.ttf') format('woff'),  /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
       url('woff2/IRANSansWeb.woff2') format('woff2'), /* Saf3—5, Chrome4+, FF3.5, Opera 10+ */
       url('woff/IRANSansWeb.woff') format('truetype');  /* Saf3—5, Chrome4+, FF3.5, Opera 10+ */
}

@font-face {
  font-family: IS_B;
  src: url('eot/IRANSansWeb_Bold.eot') format('eot'),  /* IE6–8 */
       url('ttf/IRANSansWeb_Bold.ttf') format('woff'),  /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
       url('woff2/IRANSansWeb_Bold.woff2') format('woff2'), /* Saf3—5, Chrome4+, FF3.5, Opera 10+ */
       url('woff/IRANSansWeb_Bold.woff') format('truetype');  /* Saf3—5, Chrome4+, FF3.5, Opera 10+ */
}

@font-face {
  font-family: IS_Fa;
  src: url('persian/IRANSansWeb(FaNum).eot') format('eot'),  /* IE6–8 */
       url('persian/IRANSansWeb(FaNum).ttf') format('woff'),  /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
       url('persian/IRANSansWeb(FaNum).woff2') format('woff2'),  /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
       url('persian/IRANSansWeb(FaNum).woff') format('truetype');  /* Saf3—5, Chrome4+, FF3.5, Opera 10+ */
}