lubuntu.me/plugins/404page/assets/css/404page-ui.css

#pp-404page-settings h1 {
  margin-bottom: 40px;
}

#pp-plugin-info-404page {
  min-height: 48px; 
  line-height: 48px; 
  vertical-align: middle; 
  padding-left: 60px; 
  background-repeat: no-repeat; 
  background-position: left center;
}

.rtl #pp-plugin-info-404page {
  padding-left: 0;
  padding-right: 60px;
  background-position: right center;
}

#pp-plugin-info-404page span {
  float: right; 
  padding-left: 50px;
}

.rtl #pp-plugin-info-404page span {
  float: left; 
  padding-left: 0;
  padding-right: 50px;
}

#pp-plugin-info-404page .dashicons {
  vertical-align: middle; 
}

#select404page {
  width: 100%; 
}

#pp-404page-settings .form-table th, .form-table td {
  display: block;
  width: auto;
}

#pp-404page-settings .form-table th {
  padding: 0;
  font-weight: normal;
}

#pp-404page-settings .form-table td {
  padding: 0;
  margin-bottom: 20px;
}

#pp-404page-settings .form-table td p {
  padding: 0;
  line-height: 1.2;
  margin-bottom: 20px;
}

#pp-seetings-advanced .form-table th {
  display: none;
}

#pp-404page-settings input[type="checkbox"] {
	display: none;
}

#pp-404page-settings input[type="checkbox"] + label.check {
	cursor: pointer;
	text-indent: -9999px;
	width: 80px;
	height: 40px;
	background: grey;
	display: block;
	border-radius: 40px;
	position: relative;
  float: left;
  margin-right: 40px;
}

.rtl #pp-404page-settings input[type="checkbox"] + label.check {
  float: right;
  margin-left: 40px;
  margin-right: 0;
}

#pp-404page-settings input[type="checkbox"]:disabled + label.check {
  background-color: #DDD;
}

#pp-404page-settings input[type="checkbox"] + label.check:after {
	content: '';
	position: absolute;
	top: 5px;
	width: 30px;
	height: 30px;
	background: #fff;
	border-radius: 30px;
	transition: 0.3s;
}

body:not(.rtl) #pp-404page-settings input[type="checkbox"] + label.check:after, .rtl #pp-404page-settings input[type="checkbox"]:enabled:checked + label.check:after {
  left: 5px;
  transform: none;
}

#pp-404page-settings input[type="checkbox"]:enabled:checked + label.check {
  background: #104060;
}

body:not(.rtl) #pp-404page-settings input[type="checkbox"]:enabled:checked + label.check:after, .rtl #pp-404page-settings input[type="checkbox"] + label.check:after {
  left: calc(100% - 5px);
	transform: translateX(-100%);
}

#pp-404page-settings select {
  border: 1px solid #104060;
  border-radius:5px;
  height: 40px;
  line-height: 40px;
  margin: 5px 0;
}

#pp-404page-settings .dashicons-warning, #pp-404page-settings input[type="checkbox"] + label.check.warning:before {
  color: #d54e21;
}