.B{
position:relative;
left:10px;
top:12.5px;
width:60px;
height:125px;
border-left:solid 16px#000000}

.B::before{
position:absolute;
content:'';
width:52px;
height:39px;
border-width:15px15px10px0;
border-color:#000000;
border-style:solid;
border-radius:0 240%180%0 /0 180%180%0}

.B::after{
position:absolute;
content:'';
bottom:0;
width:58px;
height:43px;
border-width:10px15px15px0;
border-color:#000000;
border-style:solid;
border-radius:0 180%220%0 /0 180%180%0}