How to change the custom field left alignment in Jira screens

[Shanmukha Teja Badana]

Can somebody assist me?

I'm giving some of fields in jira screen and in those fields, names will be small and large are there

so, once we created the screen with those fields, there is some space at the left side of small field and it is because of large field name of another field below.

Ex:

<space> Epic name : <Text box>

Current Date of Epic: <Text box>

  <space>    Priority : <drop down>

So expected is 

Epic name                : <Text box>

Current Date of Epic: <Text box>

Priority                     : <drop down>