html background color is not displayed on ie9_html/css_WEB-ITnose

IE9 HTML CSS

CSS: .main_le li.vio,.main_ri li.vio{background:-webkit-gradient(linear,100% 0,0 0,from(#876CD5),to (#5333AE));background:-o-linear-gradient(right,#876CD5,#5333AE);background:-moz-linear-gradient(right,#876CD5,#5333AE);}

Code in:

Hot Activities

in It can be displayed correctly on 360, Firefox and Google. The background color cannot be displayed on IE9. Please help me. The css is a separate file.

Reply to discussion (solution)

IE needs to use filters

background:-webkit-gradient(linear,100% 0,0 0,from( #876CD5),to(#5333AE));
background:-o-linear-gradient(right,#876CD5,#5333AE);
background:-moz-linear-gradient(right,#876CD5,# 5333AE);
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#5333AE', endColorstr='#876CD5',GradientType=1);

Please provide additional explanation for the first floor
IE relies on filters to achieve gradients.
startColorstr represents the color of the starting point, and endColorstr represents the color of the end point. GradientType represents the gradient type, 0 is the default value, indicating vertical gradient, 1 represents horizontal gradient