main.css

body {
    margin: 50%;
}

img{
    width:400px;
  margin:50%;
  border-radius: 50%;
}

h1 {
  font-family: Times New Roman;
  text-align: center;
  font-weight: bold;
  padding-bottom: 50px;
  padding-top: 50px;
  
}
#header{
  text-align: center;
  font-weight: bold;
  padding-bottom: 50px;

}
.container{
  font-family: sans-serif;
  text-align: center;
  width: 70%;
  
}
.content{
  font-weight: bold;
}

ul { display: inline-block; text-align: left; }
.qoute {
 font-family: Verdana;
 text-align: center;
 padding-left: 30%;
width: 70%;
font-size:15px;
 }
#second-text{
  font-size: 10px;
}
.container-fluid{
  background-color: #d3d3d3;
  width: 85%;
  margin-top: 5%;
  border-radius: 10px;
  box-shadow: 20px 20px 40px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23); 
}
footer{
  text-align: center;
}
body {
padding: 0;
margin: 0;
}
@media(max-width: 500px){
.container-fluid{
  display: block;
  position: center;
  box-shadow: 20px 20px 40px rgba(1,0,0,0.19), 0 6px 6px rgba(1,0,0,0.23); 
}

}