removing dotted line (gallery)

https://atterissanenphotography.com/?galleries=dogs

is the page in question btw ??

The dotted line is set here:

.hentry {
    border-bottom: 1px dashed #EEEEEE;
    margin: 0 0 20px;
}

thanks for super fast response but hmmm..

i modified the styles.php with it as follow

and edited it as this:
.hentry {border-bottom: 0px;margin:0 0 0px;overflow: hidden;}

but it still seems to take margin before the bottom copyright infos

or is there something else takin the empty space

i have these in the custom CSS box

.entry-meta, .entry-utility { display: none; visibility: hidden; }

.single-galleries .navigation { display: none; margin-top: 20px; }

so what i ment to say i want gallery pages to be identical to the home page with no extra margin between them ??

Remove the visibility: hidden — you cannot have both display:none and visibility: hidden — and the latter is overriding the display: none — which leaves the space there.

There is also 10px of padding from this:

#commentsbox {
    margin: 0 auto;
    max-width: 940px;
    padding: 10px;
}

well uhm i think i fixed those, yet theres still something taking like 3cm marging compared to the main page uhm..