#site-header {
  padding: 1em;
  background: #e8e8e8; }
  #site-header, #site-header #site-logo, #site-header #site-title {
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box; }
  #site-header #site-logo, #site-header #site-title {
    display: inline-block; }
  #site-header #site-logo {
    width: 6em; }
  #site-header #site-title {
    width: calc(100% - 6em);
    text-align: center; }