body {
    margin: 60px auto;
    width: 70%;
}
nav ul, footer ul {
    font-family:'Helvetica', 'Arial', 'Sans-Serif';
    padding: 0px;
    list-style: none;
    font-weight: bold;
}
nav ul li, footer ul li {
    display: inline;
    margin-right: 20px;
}
a {
    text-decoration: none;
    color: #999;
}
a:hover {
    text-decoration: underline;
}
h1 {
    font-size: 3em;
    font-family:'Helvetica', 'Arial', 'Sans-Serif';
}
p {
    font-size: 1.2em;
    line-height: 1.4em;
    color: #333;
}
footer {
    border-top: 1px solid #d5d5d5;
    font-size: .8em;
}

ul.posts {
    margin: 20px auto 40px;
    font-size: 1.2em;
}

ul.posts li {
    list-style: none;
}

#orbit-universe {
  position: relative;
  height: 600px;
  width: 600px;
}

#orbit-sun {
  position: absolute;
  top: 100px;
  left: 100px;
  width: 400px;
  height: 400px;
}

.orbit-container {
  position: absolute;
  border-radius: 100%;
}

.mars-container {
  top: 125px;
  left: 125px;
  width: 350px;
  height: 350px;
  -webkit-animation: spin-right 10s linear infinite;
  animation: spin-right 10s linear infinite;
}

#mars {
  top: 50px;
  left: -100px;
}

.earth-container {
  top: 75px;
  left: 75px;
  width: 450px;
  height: 450px;
  -webkit-animation: spin-right 15s linear infinite;
  animation: spin-right 15s linear infinite;
}

#earth {
  top: 100px;
  left: -10px;
}

.uranus-container {
  width: 600px;
  height: 600px;
  -webkit-animation: spin-right 20s linear infinite;
  animation: spin-right 20s linear infinite;
}

#earth {
  top: -50px;
  left: 20px;
}

.planet {
  position: absolute;
}

@-webkit-keyframes spin-right {
  100% {
    -webkit-transform: rotate(360deg);
    -moz-transform: rotate(360deg);
    -ms-transform: rotate(360deg);
    -o-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}

.pics {  
    height:  232px;  
    width:   232px;  
    padding: 0;  
    margin:  0;  
} 
 
.pics img {  
    padding: 15px;  
    border:  1px solid #ccc;  
    background-color: #eee;  
    width:  200px; 
    height: 200px; 
    top:  0; 
    left: 0 
}