LandThings Hi
I am able to see the logo now with appropriate dimensions. Ref: Screenshot
Also, Would suggest to not make any changes in core CSS file such as template.css as the changes could be overridden with template update. Instead, Would suggest to add your CSS to custom.css file which has the salient feature of not being overridden - You may require to add !important which is quite necessary, at times, for css rule-set to supersede prevailing css and have the declaration apply
Step :
Finding custom.css or you may create a new file with similar name (if it doesnt exist) ::
Shape 5 templates ship with an empty custom.css file in the /css/ subdirectory of your template. Simply add your styles to this file and they will be included in your layout.