I think you are looking for this.
css
.hex {
position: relative;
margin: 1em auto;
width: 10em; height: 17.32em;
border-radius: 1em/.5em;
background: orange;
transition: opacity .5s;
}
.hex:before, .hex:after {
position: absolute;
width: inherit; height: inherit;
border-radius: inherit;
background: inherit;
content: '';
}
.hex:before {
-webkit-transform: rotate(60deg);
-ms-transform: rotate(60deg);/*Added for IE9*/
transform: rotate(60deg);
}
.hex:after {
-webkit-transform: rotate(-60deg);
-ms-transform: rotate(-60deg);/*Added for IE9*/
transform: rotate(-60deg);
}