我的按钮适用于除 IE 之外的所有其他浏览器。我认为“边界半径”应该适用于 IE?
.simpleHelp {
border-top: 1px solid #ffffff;
background: #910330;
background: -webkit-gradient(linear, left top, left bottom, from(#790228),
to(#910330));
background: -webkit-linear-gradient(top, #790228, #910330);
background: -moz-linear-gradient(top, #790228, #910330);
background: -ms-linear-gradient(top, #790228, #910330);
background: -o-linear-gradient(top, #790228, #910330);
padding: 10.5px 21px;
-webkit-border-radius: 40px;
-moz-border-radius: 40px;
border-radius: 40px;
-webkit-box-shadow: rgba(0,0,0,1) 0 1px 0;
-moz-box-shadow: rgba(0,0,0,1) 0 1px 0;
box-shadow: rgba(0,0,0,1) 0 1px 0;
text-shadow: rgba(0,0,0,.4) 0 1px 0;
color: #ffffff;
font-size: 17px;
font-family: Georgia, Serif;
text-decoration: none;
vertical-align: middle;
}