How to remove date on single post in Islemag

Single post published date is displayed here in IsleMag theme: 

To remove this section from single post, go to Wp-admin > Appearance > Customizer > Additional CSS.

Now, add the following code:

.single span.entry-date{ display: none; }
.entry:after { width: 0px; }

Click on "Publish" button. Now, the section will be removed, but some space on the left-hand side will remain. To change it, add following code to the same Additional CSS section.

.entry {
padding-left: 20px;
  }

Change the padding value as per your website requirement.