By following kubernetes guide i have created a pv, pvc and pod. i have claimed only 10Mi of out of 20Mi pv. I have copied 23Mi that is more than my pv. But my pod is still running. Can any one explain ?

pv-volume.yaml

kind: PersistentVolume
apiVersion: v1
metadata:
  name: task-pv-volume
  labels:
    type: local
spec:
  storageClassName: manual
  capacity:
    storage: 20Mi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/mnt/data"

pv-claim.yaml

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: task-pv-claim
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Mi

pv-pod.yaml

kind: Pod
apiVersion: v1
metadata:
  name: task-pv-pod
spec:
  volumes:
    - name: task-pv-storage
      persistentVolumeClaim:
       claimName: task-pv-claim
  containers:
    - name: task-pv-container
      image: nginx
      ports:
        - containerPort: 80
          name: "http-server"
      volumeMounts:
        - mountPath: "/usr/share/nginx/html"
          name: task-pv-storage