JSFページのタイトルの背景に使用するこのcssコードがあります。
.container{
background: rgb(180,221,180); /* Old browsers */
background: -moz-linear-gradient(45deg, rgba(180,221,180,1) 0%, rgba(95,163,9,1) 0%, rgba(95,163,9,1) 48%, rgba(0,87,0,1) 68%, rgba(0,0,0,1) 86%); /* FF3.6+ */
background: -webkit-gradient(linear, left bottom, right top, color-stop(0%,rgba(180,221,180,1)), color-stop(0%,rgba(95,163,9,1)), color-stop(48%,rgba(95,163,9,1)), color-stop(68%,rgba(0,87,0,1)), color-stop(86%,rgba(0,0,0,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(45deg, rgba(180,221,180,1) 0%,rgba(95,163,9,1) 0%,rgba(95,163,9,1) 48%,rgba(0,87,0,1) 68%,rgba(0,0,0,1) 86%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(45deg, rgba(180,221,180,1) 0%,rgba(95,163,9,1) 0%,rgba(95,163,9,1) 48%,rgba(0,87,0,1) 68%,rgba(0,0,0,1) 86%); /* Opera 11.10+ */
background: -ms-linear-gradient(45deg, rgba(180,221,180,1) 0%,rgba(95,163,9,1) 0%,rgba(95,163,9,1) 48%,rgba(0,87,0,1) 68%,rgba(0,0,0,1) 86%); /* IE10+ */
background: linear-gradient(45deg, rgba(180,221,180,1) 0%,rgba(95,163,9,1) 0%,rgba(95,163,9,1) 48%,rgba(0,87,0,1) 68%,rgba(0,0,0,1) 86%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#b4ddb4', endColorstr='#000000',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
/*
background:-webkit-gradient(linear, left top, left bottom, color-stop(0, #5fa309), color-stop(1, #3b8018));
background:-webkit-linear-gradient(top, #5fa309 0%, #3b8018 100%);
background:-moz-linear-gradient(top, #5fa309 0%, #3b8018 100%);
background:-o-linear-gradient(top, #5fa309 0%, #3b8018 100%);
background:-ms-linear-gradient(top, #5fa309 0%, #3b8018 100%);
background:linear-gradient(top, #5fa309 0%, #3b8018 100%);
*/
position:relative;
display:inline-block;
padding:0 20px 0 10px;
width:270px;
line-height:20px;
font-size:12px;
font-family:sans-serif;
text-shadow:0 1px 0 #264400;
font-weight:bold;
color:#fff
}
どうすればフィギュアのエッジをより丸くすることができますか?