Template:Event/style.css

.tpl-event-header {
    font-variant:small-caps; margin:0; border:1px solid #bbb; border-bottom:0;
    background-color:lightblue; padding:0 0.3em; display:flex;
}
.tpl-event-header-left { flex:1; }
.tpl-event-header-right { flex:1; text-align:right; }
.tpl-event-main {
    border:1px solid #bbb; background-color:#efefef; padding:0.3em; text-align:center; margin:0;
}