*  { box-sizing: border-box; }

body{ margin:0;
}

section{ 
  width: 100%;
  margin:0 auto;
  max-width: 1200px;
  padding: 5em 10px 4em 10px; 
}
.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 70%;
    margin-bottom: 30px;
    padding-left: 210px;
}
.sidebar{
margin: 0;
padding: 180px 10px 0px 10px;
width: 200px;
background-color:rgba(237,158,170,1);
position: fixed;
height: 100%;
overflow: auto;
}

p{
font-family: sans-serif;
font-size: 1.5em;
margin:0;
text-align: center;
}
#pink{
  background-color: rgba(237,158,170,1);
  color: white;
}

#white{
  background-color: white;
  color: rgba(237,158,170,1);
}
nav{ 
  font-family: verdana,sans-serif;
  color: white;
  text-align: center;
  line-height: 3em;
  font-size: 22px;
  display:block;
}

nav a{
    text-decoration: none;
    color: white;
}

@media only screen and (min-width: 400px){
section{ 
  width: 100%;
  margin:0 auto;
  max-width: 1200px;
  padding: 13em 10px 11em 10px; 
}
}

@media only screen and (min-width: 550px){
section{ 
  width: 100%;
  margin:0 auto;
  max-width: 1200px;
  padding: 9em 10px 4em 10px; 
}
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
}
}
@media only screen and (max-width: 550px){
.sidebar {
    width: 100%;
    height: auto;
    position: relative;
    }
}