css_only_slider_menu.css

body {
  margin: 0;
  height: 100%;
  width: 100%;
  overflow-x: hidden; }

#cosm-header {
  height: 40px;
  width: 100%;
  position: fixed;
  left: 0;
  top: 0;
  background: #00628E;
  z-index: 10000000;
  transition: left 0.1s linear;
  -webkit-transition: left 0.1s linear; }
  #cosm-header label {
    position: relative;
    z-index: 10000000000; }
    #cosm-header label img {
      width: 24px;
      height: 24px;
      margin: 8px; }
  #cosm-header h1 {
    position: absolute;
    top: 0;
    margin: 0;
    width: 100%;
    text-align: center;
    font-size: 24px; }

#cosm-input {
  display: none; }

.cosm-cover {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  display: none;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.3); }

#cosm-nav {
  position: fixed;
  height: 100%;
  width: 240px;
  top: 0;
  left: -240px;
  background: #26292C;
  z-index: 1000000000;
  transition: left 0.1s linear;
  -webkit-transition: left 0.1s linear; }
  #cosm-nav li {
    list-style: none;
    color: #fff;
    height: 48px;
    line-height: 48px;
    padding-left: 24px; }

#cosm-container {
  padding-top: 40px;
  position: relative;
  left: 0;
  width: 100%;
  height: 100%;
  overflow-y: scroll;
  box-sizing: border-box;
  z-index: 1;
  transition: left 0.1s linear;
  -webkit-transition: left 0.1s linear; }

#cosm-input:checked ~ #cosm-header {
  left: 240px; }
#cosm-input:checked ~ #cosm-nav {
  left: 0; }
#cosm-input:checked ~ #cosm-container {
  left: 240px; }
#cosm-input:checked + .cosm-cover {
  display: block; }