fgdata/webgui/widgets/radiostack.html

<style>
.phi-widget {
       border: 3px ridge silver;
    
}

.phi-radiostack {
    font-family: "Liberation Mono";
    font-size: 11px;
    color: silver;
    background-color: #101010;
    padding: 4px;
}

.phi-radiostack input {
    font-family: "Liberation Mono";
}

.phi-radiostack span {
    width: 3.5em;
    display: inline-block;
    padding-left: 0.5em;
}

.phi-radiostack input {
    background-color: #404040;
    color: red;
    border: 2px inset silver;
    width: 8ex;
}

.phi-radiostack button {
    background-color: white;
    color: black;
    border: 2px outset gray;
    padding: 1px 2px 4px 2px;
}
</style>
<div class="phi-radiostack" data-bind="foreach: radios">
	<div class="phi-radio">
		<span data-bind="text: label"></span> 
		<input data-bind="value: use, attr: { title: stn }, tooltip: {}"/>
		<button data-bind="click: swap">&harr;</button>
		<input data-bind="value: stby"/>
	</div>
</div>