Custom Font in Quick CSS Not Working

Hi guys !

Custom fonts don’t work on my server or another server. I dont live this problem on my other website. Whats the problem ?

Quick CSS :
p { font-family: “proxima_nova_rgregular”}

Custom CSS :
@font-face {
/* REGULAR */
font-family: “proxima_nova_rgregular”;
src: url(“https://fonts.xyz.com/proximanova/proximanova_regular_macroman/ProximaNova-Reg-webfont.eot”);
src: url(“https://fonts.xyz.com/proximanova/proximanova_regular_macroman/ProximaNova-Reg-webfont.eot?#iefix”) format(“embedded-opentype”), url(“https://fonts.xyz.com/proximanova/proximanova_regular_macroman/ProximaNova-Reg-webfont.woff”) format(“woff”), url(“https://ffonts.xyz.com/proximanova/proximanova_regular_macroman/ProximaNova-Reg-webfont.ttf”) format(“truetype”), url(“https://fonts.xyz.com/proximanova/proximanova_regular_macroman/ProximaNova-Reg-webfont.svg#proxima_nova_rgregular”) format(“svg”);
font-weight: normal;
font-style: normal
}