2 questions: changing content width and editing the caption field

@Emma Lindhagen:
1. I use the layout with content on the left and the menu on the right. Is there a way to make the content side a bit wider and the menu side a bit narrower?
— This is big challenging as of responsive design. I have come up with the CSS as per our sidebar. Can you try adding in the following CSS in “Appearance => Theme Options => Custom CSS” box.

@media screen and (min-width: 961px) {
#primary {
    margin: 0 -31.5% 0 0;
}
#content {
    margin-right: 34.6%;
    width: 62.4%;
}
#secondary {
    width: 28.5%;
}
}

2. I’ve noticed when you insert images and add a caption, there is a – before the caption each time. Is there a way to remove this or otherwise edit how the caption box will look?
— You can ad the following css in “Appearance => Theme Options => Custom CSS” box.

.wp-caption .wp-caption-text:before {
    content: none;
}
.wp-caption .wp-caption-text {
	padding-left: 4px;
}