How to apply CSS to half of a point feature? - css

Question

Due to I can not use server-side StyledLayerDescriptor (SLD) coding, neither I want to load external graphics I would like to use CSS to style my OpenLayers' point features.
In detail I would like to fill half (or 1/3) of a point feature with different colors.
A CSS code might be
#OpenLayers\.Geometry\.Point_111{
fill: red !important;
background: -moz-linear-gradient(-45deg, #ce275f 50%, #1e5799 50%, #207cca 50%, #7db9e8 100%) !important; /* FF3.6+ */
}
The feature is not assigned to a class.
Is that possible? Are there any other possibilities?

Answer 1

I immediately thought of this:
.circle {
height: 100px;
width: 100px;
border-radius: 50%;
background: #000000; /* Old browsers */
background: -moz-linear-gradient(left, #000000 1%, #000000 50%, #ff00ff 50%, #ff00ff 100%, #ff00ff 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(1%,#000000), color-stop(50%,#000000), color-stop(50%,#ff00ff), color-stop(100%,#ff00ff), color-stop(100%,#ff00ff)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, #000000 1%,#000000 50%,#ff00ff 50%,#ff00ff 100%,#ff00ff 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left, #000000 1%,#000000 50%,#ff00ff 50%,#ff00ff 100%,#ff00ff 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left, #000000 1%,#000000 50%,#ff00ff 50%,#ff00ff 100%,#ff00ff 100%); /* IE10+ */
background: linear-gradient(to right, #000000 1%,#000000 50%,#ff00ff 50%,#ff00ff 100%,#ff00ff 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#ff00ff',GradientType=1 ); /* IE6-9 */
}
JSfiddle
Gradient generated with Ultimate CSS Gradient Generator