.catalog-product-view .product-downloads ul li { list-style: none; }

.catalog-product-view .product-downloads ul li.attachment:before {
    font-family: FontAwesome;
    font-style: normal;
    font-weight: normal;
    content: '\f016';
    speak: none;
    display: inline-block;
    text-decoration: inherit;
    width: 1em;
    margin-right: .2em;
    text-align: center;
    font-variant: normal;
    text-transform: none;
    line-height: 1em;
    margin-left: .2em;
    -webkit-font-smoothing: antialiased;
}

.catalog-product-view .product-downloads ul li.attachment-type-image-png:before { content: '\f1c5'; }
.catalog-product-view .product-downloads ul li.attachment-type-image-jpg:before { content: '\f1c5'; }
.catalog-product-view .product-downloads ul li.attachment-type-image-jpeg:before { content: '\f1c5'; }
.catalog-product-view .product-downloads ul li.attachment-type-image-gif:before { content: '\f1c5'; }
.catalog-product-view .product-downloads ul li.attachment-type-application-pdf:before { content: '\f1c1'; }
.catalog-product-view .product-downloads ul li.attachment-type-application-msword:before { content: '\f1c2'; }
.catalog-product-view .product-downloads ul li.attachment-type-application-vnd-open:before { content: '\f1c2'; }