@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');

#all {
    width: 955px; 
    margin-left: auto ;
    margin-right: auto ;
    margin-top: 0; 
    margin-bottom: 0; 
    padding: none; 
}



body
{
    font-family: 'Roboto', Helvetica, sans-serif; 
 }
html
{
	margin: 0; 
	padding: 0; 
  overflow-y: scroll; 
}

h1,h2,h3
{

line-height 1.1; 
color: #111; 
margin-top: 0; 
}

#main {
  padding: 10px;
  margin: 20px; 
  min-height: 550px; 
  line-height: 1.5; 
}

hr {
  border: none;
  background-color: black; 
}

ul {
  padding-left: 20px; 
  line-height: 1.5; 
}

li 
{
  margin-bottom: 10px; 
}

img
{
  margin-left: auto; 
  margin-right: auto; 
  display: block; 
  margin-bottom: 35px; 
  margin-top: 35px; 
}

a:link {
    color: blue;
    text-decoration: none;
}

a:visited {
    color: purple;
    text-decoration: none;
}

a:hover {
    color: darkblue;
    text-decoration: none;
}