reactjs_koans/build/stylesheets/elements.css

h1 {
  text-align: center;
  text-transform: uppercase;
  font-family: "Open Sans", sans-serif;
  font-size: 27px;
  color: #444444;
  font-weight: 700;
}
h1 span {
  font-weight: 400;
}

input[type="text"] {
  padding: 10px;
  border: solid 1px #dcdcdc;
  transition: box-shadow 0.3s, border 0.3s;
}
input[type="text"]:focus,
input[type="text"].focus {
  border: solid 1px #707070;
  box-shadow: 0 0 5px 1px #969696;
}

button {
  border: 0 none;
  margin-left: 5px;
  border-radius: 2px 2px 2px 2px;
  color: #FFFFFF;
  cursor: pointer;
  display: inline-block;
  font-size: 12px;
  font-weight: bold;
  line-height: 20px;
  margin-bottom: 0;
  margin-top: 10px;
  padding: 7px 10px;
  text-transform: none;
  transition: all 0.3s ease 0s;
  -moz-transition: all 0.3s ease 0s;
  -webkit-transition: all 0.3s ease 0s;
  width: 16.795%;
  text-align: center;
  background: none repeat scroll 0 0 #999999;
  color: #FFFFFF;
}
button:hover {
  background: none repeat scroll 0 0 #444444;
  color: #FFFFFF;
}
button[disabled] {
  opacity: 0.5;
}