*,.
*: in the past,.
*: after {
box-sizing: border-box;.
}
body,.
html {
size: 100%;.
elevation: 100%;.
}
body {
cushioning: 40px;.
text-align: facility;.
}
. triangular {
screen: inline-block;.
margin: 0 5px;.
vertical-align: center;.
setting: outright;.
top: 0;.
left:0;.
shift: all ones simplicity;.
}
area {
setting: family member;.
arrow: reminder;.
}
. triangle-4 {
left:0;.
change: revolve( 135deg);.
size: 60px;.
elevation: 60px;.
border-bottom: strong 30px rgb( 200,30,50);.
border-left: strong 30px clear;/ **/.
border-right: strong 30px clear;.
border-top: strong 30px clear;.
}
area: float >>. triangle-5 {
left: 50px;.
}
area: float >>. triangle-4 {
left: -50 px;.
}
. triangle-5 {
change: revolve( 135deg);.
size: 60px;.
elevation: 60px;.
border-bottom: strong 30px clear;.
border-left: strong 30px black;.
border-right: strong 30px clear;.
border-top: strong 30px clear;.
}
<< area>>.
<< div course=" triangular triangle-4"><> .
<< div course=" triangular triangle-5"><> .
<