CSS: IE FIrefox Safari Hack

gistfile1.css

@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {  
    /* IE10+ specific styles go here */
    .example {
        overflow: visible !important;
    }
}
@supports (-ms-accelerator:true) {
  /* Edge */  
}
@supports (-ms-ime-align:auto) {
  /* Edge */ 
}

@-moz-document url-prefix() {
    .example {
    }
}

/* Safari 9+ */
@media screen and (min-color-index:0) 
    and(-webkit-min-device-pixel-ratio:0) {
    .example {}    
}