header{
    background-color: red;
    text-indent: -99999999px;
    height: 225px;
    width: 225px;
 background-image: url("images/download.png");
 border-radius: 50%;
 box-shadow: rgb(0, 0, 0) 0 0 10px ;
 }
 
 
 
 
 
 
 body
  {
     background-image: url("images/hellod.png");
     background-size: 1920px;
     background-size: 100%;
     text-align: center;
     background-color: rgb(102, 173, 175);
     font-family: Arial, Helvetica, sans-serif;
 }
 h1 { 
 color: blue;
 
 }
 footer{
    font-size: 11px;
 }
 section {
    display: flex;
 }
 section div{
    background: tomato;
    width: 10%;
    margin: 1px
    
    
    
 }
    
 ul{
    margin: 0;
    padding: 0;
    list-style-type: none
 }
 li{
    display: inline-block;
    
 }
 button {
 background: rgb(255, 208, 0);
 box-shadow: rgb(0, 0, 0) 0 0 10px ;
 color: rgb(0, 0, 0);
 padding: 8px 20px 8px 20px
 
 
 
 }
 
 
 
 .features {
    
 display: flex
 
 
 }
 
 
 footer{
 background: transparent;
 padding: 10px 10px 10px 10px ;
 font-family:Arial, Helvetica, sans-serif;
 
 
 
 }
 .features figure{
 
 display: inline-block;
 margin: auto;
 width: 1000px;
 
 
 }
 .features figure img{
    width: 100px;
    border-radius: 50%;
    box-shadow: gray 0 0 10px ;
 }