ECS multi-container stopped but when aligned with one container it runs.

i want to have the 5 container running inside the one task and one service within the same cluster, but didn't find the right approach however i want to use the ec2 instance to deploy them with ECS. whenever i am fetching the container with one single container with nginx image as test image then it is flashing the output but once i did with multicontainer for different images then it went from pendiing state to stopped one with new task defination as revision. kindly advice me like how to deploy the microservices with ECS if i have multiimages in ECR. do mention the port mapping like i have used one port(host:conntainer __:80) in one container then can't i use the same 80 of container for tthe other as i want to have the dynamic poort of host and container port as 80