Child Theme Modification

H,
I am working on a childtheme and I am trying to move the content but facing difficulties. Highly appreciate if someone can help:

https://www.memastudio.ca

On the website above, I am trying to
-get rid of that empty space between the red mema studio logo and the line below it. So the logo sits right on the top of the line.

-move the red mema studio logo to the left, so that the end of red mema line up with the left of content.

here is the style which is not working:
/*
Theme Name: Child of Twenty Twelve
Theme URI:
Description: Cool child theme based on 2012
Author: Mahsa
Template: twentytwelve
Version: 1.1.1
*/

@import url(“../twentytwelve/style.css”);

.entry-content img, .comment-content img, .widget img, img.header-image, .author-avatar img, img.wp-post-image {
border-radius: 0;
box-shadow: none;
}
/* Sidebar */

.widget-area .widget p,
.widget-area .widget li,
.widget-area .widget .textwidget {
font-size: 15px;
font-size: 1.07571429rem;

.widget-area .widget a:hover {
color: rgb(247, 16, 16);
}

.header-image {
margin-left: -10000px;
}

.main-navigation {
margin-top: none;
}