Buongiorno,

vorrei modificare lo stile di una select option. Vorrei modificare lo stile originario modificando anche l'immagine della freccia. Il tutto funziona solo con chrome. Ie e firefox non funziona.
Se qualcuno può aiutarmi ne sarei grato. Non cambia lo stile della freccia.

Questo è il codice utilizzato:

codice:
.styleselect select{
	/* IE9 SVG, needs conditional override of 'filter' to 'none' */
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(top,  rgba(255,255,255,0) 0%, rgba(246,246,246,1) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,0)), color-stop(100%,rgba(246,246,246,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  rgba(255,255,255,0) 0%,rgba(246,246,246,1) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  rgba(255,255,255,0) 0%,rgba(246,246,246,1) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  rgba(255,255,255,0) 0%,rgba(246,246,246,1) 100%); /* IE10+ */
background: linear-gradient(to bottom,  rgba(255,255,255,0) 0%,rgba(246,246,246,1) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#f6f6f6',GradientType=0 ); /* IE6-8 */

  	width: 80px;
        font-size: 12px;
        height: 30px;
        border-style:none;
	-webkit-appearance: none; /* WebKit */
	-moz-appearance: none; /* Mozilla */
	-o-appearance: none; /* Opera */
	-ms-appearance: none; /* Internet Explorer */
	appearance: none; /* CSS3 */
	-webkit-border-top-left-radius: 5px;
	-webkit-border-bottom-left-radius: 5px;
	-moz-border-radius-topleft: 5px;
	-moz-border-radius-bottomleft: 5px;
	border-top-left-radius: 5px;
	border-bottom-left-radius: 5px;
	
	
}
.styleselect{
	float:left;
	overflow: hidden;
	background: url(img/tri.png) no-repeat right ;
	width: 80px;
        font-size: 12px;
        height: 30px;
	margin-left:1px;
	
}