If you have a Gmail account, you may already realize that Gmail has 3 different display density styles. Based on your preference, you can select any one of the 3 three styles: Default, Comfortable, and Compact.
Step 1: Login your Gmail account (please refer here to open one if you do not have an account yet);
Step 2: In the Gmail account, click the "Setting" button on the right-top corner;
Step 3: Click the "Display density" button from the drop-down list;
Step 4: In the next window, select one of the 3 display density types:
1. Default: The attachment will come with the document type icon in this type, and it will take a separate row;
2. Comfortable: The space between emails will be the same as the default type, but the attachment will display as a clip sign at the end of the email;
3. Compact: The space between emails will be smaller than the above two types, and the attachment will also display as a clip sign at the end of the email.