If you installed your BuySellAds code on your wordpress sidebar widget, it may for the two ADs 125×125 will be aligned to the left without any spaces in between them like Fig.1 shown below
Fig.1: Screenshot taken from http://hq-apps.com before fixing the problem
To fix this in easy steps to make it look like Fig.2
Fig.2: Screenshot after fixing the problem
1- Login in your BuySellAds.com account.
2- Click on Publishers dashboard.
3- Go to your 125×125 Ads and click on Install Ad Code.
4- Scroll down to Advanced Settings.
5- Change the Code from Anchor Style
from
display:block;font-size:11px;color:#888;font-family:verdana,sans-serif;margin:0;text-align:center;text-decoration:none;overflow:hidden;float:left;
To
float: left;display:block;font-size:11px;color:#888;font-family:verdana,sans-serif;margin:0 10px 10px ;text-align:center;text-decoration:none;overflow:hidden;float:left;
6- Click on Save.
7- Wait few minutes before the changes take effects