wagtail/docs/_static/css/custom.css

body.wy-body-for-nav {
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.5em;
    color: #333; /*$color-grey-1*/
    background-color: #e6e6e6; /*$color-grey-4*/
}

div.wy-nav-side {
    background-color: #333;  /*color-grey-1*/
}

div.wy-side-nav-search {
    background-color: #007d7e; /*color-teal*/
}

.wy-nav-top {
    background-color: #007d7e; /*color-teal*/
}

.wy-side-nav-search>a:hover, .wy-side-nav-search .wy-dropdown>a:hover {
    background: None; /*background for logo*/
}

.wy-side-nav-search>div.version {
    color: white;
}

.wy-side-nav-search input[type=text] {
    border-color: #d9d9d9; /*color-grey-3*/
}

.logo {
    transition: all 0.25s cubic-bezier(0.28, 0.15, 0, 2.1);
}

.logo:hover {
    transform: rotate(4deg);
}

/* Wagtail Space */
a.wagtailspace {
    background: #00676a;
    color: white;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 1.25em;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.wagtailspace svg {
    margin-right: 1em;
    width: 56px;
}

.wagtailspace div {
    text-align: left;
    flex-grow: 2;
}

.wagtailspace strong {
    font-size: 1.25em;
}

.wagtailspace .close {
    margin-left: 1em;
    margin-bottom: 1em;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.25em;
}

/* Bounce the UFO on hover  */
@-webkit-keyframes bounce {
  0%, 100% {
    -webkit-transform: translateY(0);
  }
  50% {
    -webkit-transform: translateY(-5px);
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

a.wagtailspace:hover svg {
  -webkit-animation-duration: .5s;
  animation-duration: .5s;
  -webkit-animation-fill-mode: both;
  animation-fill-mode: both;
  -webkit-animation-timing-function: linear;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-name: bounce;
  animation-name: bounce;
}