radio style (algoritmo de Sergio)
ejemplo: http://c4m2.dev.topgroup.com.ar/customer/account/create/
input[type="radio"]
&:not(:checked)
&:checked
position absolute
left -9999px
& + label
position relative
padding 5px 15px 5px 30px
display inline-block
margin-bottom 10px
cursor pointer
&:before
content ""
position absolute
left 0
top 2px
width 10px
height 10px
border-radius 50%
border 7px solid #fff
box-shadow 0 0 1px #000
&:checked + label:before
background-color #060
<div class="control">
<input type="radio" id="mundo_bb_subscribed_1" name="mundo_bb_subscribed" value="1" class="radio">
<label for="mundo_bb_subscribed_1" class="label"><span>Sí</span></label>
<input type="radio" id="mundo_bb_subscribed_0" name="mundo_bb_subscribed" value="0" class="radio" checked="checked">
<label for="mundo_bb_subscribed_0" class="label"><span>No</span></label>
</div>