Fix signatures not displaying correctly in Gmail
Gmail allows users to create multiple signatures to use in each different case. However, in some cases, your signature is displayed incorrectly.
If your signature is too tall or too wide, or there is a problem with inline CSS, an error will occur.
To work around this, follow the steps below to remove the formatting:
Step 1: Open Gmail
Step 2: On the top right, click Settings-> select See all settings.
Step 3: In the "Signature" section, highlight your signature.
Step 4: Click Remove Format