static/themes/metro-blue/menubutton.css

.m-btn-downarrow,
.s-btn-downarrow {
  display: inline-block;
  position: absolute;
  width: 16px;
  height: 16px;
  font-size: 1px;
  right: 0;
  top: 50%;
  margin-top: -8px;
}
.m-btn-active,
.s-btn-active {
  background: #9cc8f7;
  color: #404040;
  border: 1px solid #9cc8f7;
  filter: none;
}
.m-btn-plain-active,
.s-btn-plain-active {
  background: transparent;
  padding: 0;
  border-width: 1px;
  border-style: solid;
  -moz-border-radius: 0px 0px 0px 0px;
  -webkit-border-radius: 0px 0px 0px 0px;
  border-radius: 0px 0px 0px 0px;
}
.m-btn .l-btn-left .l-btn-text {
  margin-right: 20px;
}
.m-btn .l-btn-icon-right .l-btn-text {
  margin-right: 40px;
}
.m-btn .l-btn-icon-right .l-btn-icon {
  right: 20px;
}
.m-btn .l-btn-icon-top .l-btn-text {
  margin-right: 4px;
  margin-bottom: 14px;
}
.m-btn .l-btn-icon-bottom .l-btn-text {
  margin-right: 4px;
  margin-bottom: 34px;
}
.m-btn .l-btn-icon-bottom .l-btn-icon {
  top: auto;
  bottom: 20px;
}
.m-btn .l-btn-icon-top .m-btn-downarrow,
.m-btn .l-btn-icon-bottom .m-btn-downarrow {
  top: auto;
  bottom: 0px;
  left: 50%;
  margin-left: -8px;
}
.m-btn-line {
  display: inline-block;
  position: absolute;
  font-size: 1px;
  display: none;
}
.m-btn .l-btn-left .m-btn-line {
  right: 0;
  width: 16px;
  height: 500px;
  border-style: solid;
  border-color: #1a7bc9;
  border-width: 0 0 0 1px;
}
.m-btn .l-btn-icon-top .m-btn-line,
.m-btn .l-btn-icon-bottom .m-btn-line {
  left: 0;
  bottom: 0;
  width: 500px;
  height: 16px;
  border-width: 1px 0 0 0;
}
.m-btn-large .l-btn-icon-right .l-btn-text {
  margin-right: 56px;
}
.m-btn-large .l-btn-icon-bottom .l-btn-text {
  margin-bottom: 50px;
}
.m-btn-downarrow,
.s-btn-downarrow {
  background: url('images/menu_arrows.png') no-repeat 0 center;
}
.m-btn-plain-active,
.s-btn-plain-active {
  border-color: #9cc8f7;
  background-color: #9cc8f7;
  color: #404040;
}