Александр Петров, trushka: Как комментарий отметить решением? Возможно тут два ответа решением отметить?
Получилось ваш пример + генератор из сообщения выше.
естественно, предполагаем что есть 2 статических IP, но если есть вариант с динамическими - тоже интересно.... если сделать свой внешний dns, то вроде 50% запросов может идти на неактивный адрес, это не очень приятно...
Вот так - то что нужно...
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background: -moz-radial-gradient(center, ellipse cover, rgba(241,218,54,0.5) 14%, rgba(241,218,54,0.48) 16%, rgba(249,238,162,0.01) 55%, rgba(254,252,234,0.01) 81%), #500c12 url(/images/tilesw200.png); /* FF3.6-15 */
background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(14%,rgba(241,218,54,0.5)), color-stop(16%,rgba(241,218,54,0.48)), color-stop(55%,rgba(249,238,162,0.01)), color-stop(81%,rgba(254,252,234,0.01))); /* Chrome4-9,Safari4-5 */
background: -webkit-radial-gradient(center, ellipse cover, rgba(241,218,54,0.5) 14%,rgba(241,218,54,0.48) 16%,rgba(249,238,162,0.01) 55%,rgba(254,252,234,0.01) 81%), #500c12 url(/images/tilesw200.png); /* Chrome10-25,Safari5.1-6 */
background: -o-radial-gradient(center, ellipse cover, rgba(241,218,54,0.5) 14%,rgba(241,218,54,0.48) 16%,rgba(249,238,162,0.01) 55%,rgba(254,252,234,0.01) 81%), #500c12 url(/images/tilesw200.png); /* Opera 12+ */
background: -ms-radial-gradient(center, ellipse cover, rgba(241,218,54,0.5) 14%,rgba(241,218,54,0.48) 16%,rgba(249,238,162,0.01) 55%,rgba(254,252,234,0.01) 81%), #500c12 url(/images/tilesw200.png); /* IE10 preview */
background: radial-gradient(ellipse at center, rgba(241,218,54,0.5) 14%,rgba(241,218,54,0.48) 16%,rgba(249,238,162,0.01) 55%,rgba(254,252,234,0.01) 81%), #500c12 url(/images/tilesw200.png); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#80f1da36', endColorstr='#03fefcea',GradientType=1 ), #500c12 url(/images/tilesw200.png); /* IE6-9 fallback on horizontal gradient */
clip2net.com/s/3Bja4lG