my-website/fs-3411-usb-page/styles.css

/* Styles (CSS Level 1) */

body
{
  background-color: #191919;
  font-family: Arial;
  font-size: 20px;
  width: 100%;
  margin: 0;
  text-align: justify;
  margin-bottom: 100px;
}

h1, h2, h3
{
  margin-top: 0;
  margin-bottom: 0;
  line-height: 50px;
}

ol, ul
{
  list-style-position: inside;
  padding-left: 0;
}

ul, ol, li
{
  margin-top: 20px;
}

img
{
  width: 100%;
}

#top, #main
{
  padding-left: 30px;
  padding-right: 30px;
  padding-top: 10px;
  padding-bottom: 10px;
}

#top
{
  background-color: #cdcdcd;
  border-bottom: #00B3F5 9px solid;
}

#main 
{  
  width: 50%;
  margin-left: auto;
  margin-right: auto;
  margin-top: 60px;
  background-color: #cdcdcd;
  border: #00B3F5 9px solid;
}

#contents
{
  text-align: center;
}

#list-indent
{
  margin-left: 30px;
}