Please find below code for the fix.
In file core.css from qa-theme/MaxControl/css/core.css
find below code between line #23 to line #70
/*---[ Start: global css ]---*/
.clearfix:after,
#qa-login-group:after,
.qa-header:after,
.qa-main-shadow:after,
.qa-footer-bottom-group:after,
.qa-main-wrapper:after,
.qa-nav-main-list:after,
.qa-nav-user-list:after,
.qa-q-item-stats:after,
.qa-activity-count:after,
.qa-body-wrapper:after,
.qa-a-item-buttons:after {
visibility: hidden;
display: block;
font-size: 0;
content: " ";
clear: both;
height: 0;
}
.clearfix,
#qa-login-group,
.qa-header,
.qa-main-shadow,
.qa-nav-footer,
.qa-footer-bottom-group,
.qa-main-wrapper,
.qa-nav-main-list,
.qa-nav-user-list,
.qa-q-item-stats,
.qa-activity-count,
.qa-body-wrapper,
.qa-a-item-buttons { display: inline-table; }
/* Hides from IE-mac \*/
* html .clearfix { height: 1%; }
.clearfix,
#qa-login-group,
.qa-header,
.qa-main-shadow,
.qa-nav-footer,
.qa-footer-bottom-group,
.qa-main-wrapper,
.qa-nav-main-list,
.qa-nav-user-list,
.qa-q-item-stats,
.qa-activity-count,
.qa-body-wrapper,
.qa-a-item-buttons { display: block; }
/* End hide from IE-mac */
replace with below code
/*---[ Start: global css ]---*/
.clearfix:after,
#qa-login-group:after,
.qa-header:after,
.qa-main-shadow:after,
.qa-footer-bottom-group:after,
.qa-main-wrapper:after,
.qa-nav-main-list:after,
.qa-nav-user-list:after,
.qa-q-item-stats:after,
.qa-activity-count:after,
.qa-body-wrapper:after,
.qa-a-item-buttons:after,
#qa-loginform:after {
visibility: hidden;
display: block;
font-size: 0;
content: " ";
clear: both;
height: 0;
}
.clearfix,
#qa-login-group,
.qa-header,
.qa-main-shadow,
.qa-nav-footer,
.qa-footer-bottom-group,
.qa-main-wrapper,
.qa-nav-main-list,
.qa-nav-user-list,
.qa-q-item-stats,
.qa-activity-count,
.qa-body-wrapper,
.qa-a-item-buttons,
#qa-loginform { display: inline-table; }
/* Hides from IE-mac \*/
* html .clearfix { height: 1%; }
.clearfix,
#qa-login-group,
.qa-header,
.qa-main-shadow,
.qa-nav-footer,
.qa-footer-bottom-group,
.qa-main-wrapper,
.qa-nav-main-list,
.qa-nav-user-list,
.qa-q-item-stats,
.qa-activity-count,
.qa-body-wrapper,
.qa-a-item-buttons,
#qa-loginform { display: block; }
/* End hide from IE-mac */
This should resolve the alignment and spacing issue. If you can't see the difference than remove your browser cache and restart it once.