div{
float: left;
clear: both;
padding: 5%;
border-radius: 30px;
}

.header{
background-color: red;  
width: 70%;
margin-left: 10%;
margin-top: 30px;
font-size: 20pt;
font-family: arial;
}
  
#container{
background-color: blue;
height: 1800px;
margin-bottom: 40px;
width: 70%;
margin-left: 10%;
}

.textarea{
background-color: violet;
height: 900px;
width: 70%;
margin-left: 10%;
margin-top: 50px;
}

.button{
background-color: darkred;
clear: none;
height: 10px;
padding-left: 10%
text-align: center;
width: 10%;
}