style for close icon

cross.less

            &:after,
            &:before {
                content: '';
                @s: 2px;
                width: 100%;
                height: @s;
                background-color: @brandcol1;
                display: block;
                position: absolute;
                left: 0;
                top: 50%;
                margin-top: -@s/2;
            }

            &:before {
                transform: rotate(45deg);
            }

            &:after {
                transform: rotate(-45deg);
            }