@media screen and (-webkit-min-device-pixel-ratio:0) {
    /* chrome */  
    .header-menu svg { 
		display: none;
	}
}

@media screen and (min-width:0\0) {  
    /* IE9 and IE10 rule sets go here */  
    .header-menu svg { 
		top: 18px !important;
		z-index: -1;
	}
} 

.header-menu svg { 
	[if IE] top: 18px !important;
	z-index: -1
}