body{
  background: #333 url(../img/daniel-watson-75027.jpg) center center no-repeat;
  background-size: cover;
  color: #532827;
}

#container{
  width: 400px;
  margin: 40px auto 0;
  padding: 50px;
  box-sizing: border-box;
  background: url(../img/helena-hertz-256396.jpg) top left repeat;
  box-shadow: 0 10px 15px -8px #000;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  text-align: center;
}

h1{
  margin: 0 0 20px;
  padding: 0 0 20px;
  border-bottom: solid 1px #ddd;
}
form{
  text-align: left;
}
form label{
  display: block;
  margin: 25px 0;
  font-weight: bold;
}
form input,
form select{
  padding: 8px;
  margin: 10px 0;
}
form input[type="text"]{
  width: 90px;
}
button{
  background: #6c2726;
  color: white;
  border: none;
  border-bottom: solid 4px #222;
  font-size: 18px;
  padding: 10px;
  width: 100%;
}
button:hover{
  background: #4c2827;
  border-bottom-color: #111;
}
button:active{
position: relative;
top: 1px;
}
#totalTip{
  font-size: 50px;
  margin-top: 40px;
}
#totalTip:before{
content: "Tip amount";
font-size: 14px;
font-weight: bold;
display: block;
text-transform: uppercase;
}
#totalTip sup{
  font-size: 24px;
  top: -18px
}
#totalTip small{
  font-size: 14px;
  font-weight: bold;
  display: block;
}