.house	{background:url('/pic/house.svg')		center no-repeat;}
.boiler	{background:url('/pic/boiler.svg#on2')	center no-repeat;}
.icon{min-width:3ch;text-align:center;padding:.2em 0;}

[data-temperature] .value{width:7ch;}
 [data-temperature="int"]>*>:first-child
,[data-temperature="ext"] .icon>:first-child
,[data-temperature="main"]>*>:first-child{visibility:hidden;}
[data-temperature]>*>*{display:inline-block;}
 .icon>:first-child::after
,[data-temperature]>*>:first-child::before{content:'🌡';}