By default, the post thumbnails (the image which are set as ‘Feature Image’ for posts) are displayed in full width in most of the Premium and Free themes by us.
In some cases you may want to display them smaller and floated to left. It can be easily implemented with a small code change, here are all of the necessary steps:
Login to Admin Panel, then navigate to Left Menu -> Appearance -> Theme Editor
Open style.css and insert the following code:
article img.wp-post-image {
float: left;
margin: 0 10px 10px 0;
max-width: 30% !important;
}
Note: You can change the above percentation value (30%) to any other i.e. 40% or 50%.
Then save change. Open your website, click Ctrl + F5 to refresh and now your post thumbanils will be displayed in left and in smaller size.