自定义jquery mobile panel宽度

.ui-panel {
    width: 23em;
}
.ui-panel-position-left {
    left: -23em;
}
/* positioning: content wrap, fixed toolbars and dismiss */
/* panel left open */
.ui-panel-content-fixed-toolbar-position-left.ui-panel-content-fixed-toolbar-open,
.ui-panel-content-wrap-position-left.ui-panel-content-wrap-open,
.ui-panel-dismiss-position-left.ui-panel-dismiss-open {
    left: 23em;
    right: -23em;
}
/* animated: panel left open (for reveal and push) */
.ui-panel-animate.ui-panel-content-fixed-toolbar-position-left.ui-panel-content-fixed-toolbar-open.ui-panel-content-fixed-toolbar-display-reveal,
.ui-panel-animate.ui-panel-content-fixed-toolbar-position-left.ui-panel-content-fixed-toolbar-open.ui-panel-content-fixed-toolbar-display-push,
.ui-panel-animate.ui-panel-content-wrap-position-left.ui-panel-content-wrap-open.ui-panel-content-wrap-display-reveal,
.ui-panel-animate.ui-panel-content-wrap-position-left.ui-panel-content-wrap-open.ui-panel-content-wrap-display-push {
    -webkit-transform: translate3d(23em,0,0);
    -moz-transform: translate3d(23em,0,0);
    transform: translate3d(23em,0,0);
}