improved Github CSS

gistfile1.txt

.js-repo-nav,
.px-lg-5,
.repos-split-pane-content {
    #max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 32px !important;
    padding-right: 32px !important;
}



/* Horizontal line under header */
.AppHeader {
  background-color: #ddd;
  box-shadow: inset 0 -2px 0  #bbb !important;
}

.AppHeader .Button-withTooltip, a#AppHeader-notifications-button  {
  display: none;
}
.AppHeader-globalBar-end * {
  
}
.AppHeader-globalBar {
  padding: 5px 10px 5px 5px !important;
}

.AppHeader-globalBar-start .AppHeader-logo {
 display: none 
}
.AppHeader-localBar .UnderlineNav {
  min-height: 0px;
}
.AppHeader-localBar nav  {
  padding-inline-start: 0 !important;
}
.AppHeader-localBar li a {
  margin: 0;
  padding: 0;
  padding-left: 15px;
  padding-bottom: 5px
}

.pagehead {
    box-shadow: inset 0 -1px 0 #e1e4e8 !important;
}

/* Lines between files/folders. */
.js-navigation-item {
    border-bottom: solid 1px #8e8e8e4a;
}

/* Squarish avatars. */
.circle,
.avatar-user {
    border-radius: 0px !important;
}


.d-flex:has(.pr-review-reactions) {
  padding: 10px 0 0 0;
  margin-right: -5px;
  float: right;
}

/* 'star' button gets squarish corners */
button.btn-sm {
  border-radius: 2px !important;
}

/* squarish corners */
* {
    border-radius: 2px !important;
}