Write your ACL matching the traffic you want shape

access-list 100 permit tcp host 192.168.3.10 eq www any                                                       
access-list 101 permit tcp any eq www 192.168.3.0 0.0.0.255

The ACL 100 match outgoing HTTP traffic, the second match incoming HTTP

Configure the rate limit

!
interface Ethernet0
 rate-limit input access-group 100  <rate> <normal> <max> conform-action continue exceed-action drop
 rate-limit output access-group 101 <rate> <normal> <max> conform-action continue exceed-action drop
!