my images are not showing up i copied his work but im using notpad++

body{
    font-family:'Bungee', cursive;
}
 a {
text-decoration: none;
} 
#wrapper{
    max-width: 940px;
    margin:0 auto;
    padding: 0 5%;
}
#logo{
    text-align: center;
    margin: 0;
}
img{
    max-width: 100%;
}
header { 
float: left;
margin: 0 0 30px 0;
padding: 5px 0 0 0;
width: 100%;
}
h3{
    margin: 0 0 1em 0;
}
/*******************************************************
colors
*******************************************************/
a{
    color: #6ab47b
}
header {
    background: #6ab47b;
    border-color #599a68
}
h1, h2 {
    color: #ffffff;
}
nav{
    background:#599a68
}
nav a, nav a visted {
    color: #ffffff;
}
nav a.selected , nav a:hover{
    color: #32673f
}
body{
    background-color: #white;
    color: #888;
}
/************************************************************
Font style
************************************************************/
h1 {
    font-family: 'Bungee Inline', cursive;
    margin: 15px 0;
    font-size: 1.75em;
    font-weight: normal;
    line-height: 0.8;
}
h2{
    font-size: 0.75em;
    margin: -5px 0 0;
    font-weight: normal;
}
/*******************************************************
navigation
*******************************************************/
nav {
    text-align: center;
    padding: 10px 0;
    margin: 20px 0 0;
}
nav ul{
    list-style: none;
    margin: 0 10px;
    padding: 0;
}
nav li {
    display: inline-block;
}
nav a {
    font-weight: 800;
    padding: 15px 10px;
}
/*******************************************************
footer
*******************************************************/
footer{
    font-size: o.75em;
    text-align: center;
    clear: both;
    padding-top: 50px;
}
.social-icon{
    width:50px;
    height: 50px;
    margin: 0 5px;
    border-radius: 100%;
}
/*******************************************************
images
*******************************************************/
#gallery {
    margin:0;
    padding: 0;
    list-style: none;
}
#gallery  li{
    float: left;
    width: 45%;
    margin: 2.5%;
    background-color: orange;
    color: #bdc3c7;
}
    #gallery li a p{
    margin: 0;
    padding: 5%;
    font-size: 0.75em;
    background-color: orange;
    color: black;
}
/***************************************
page:about
***************************************/
.profile-photo {
    display: block;
    max-width: 150px;
    margin: 0 auto 30px;
    border-radius: 100%;
}
#about {
    text-align:center;
}
/***************************************
page:contact
***************************************/
.contact-info{
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.9em;
}
.contact-info a{
    display:block;
    min-height: 20px;
    background-repeat: no-repeat;
    background-size:20px 20px;
    padding: 0 0 0 30px;
    margin: 0 0 10px;
}
.contact-info  li.phone a{
    background-image: url('../img/phone.png');
}
.contact-info  li.mail a{
    background-image: url('../img/mail.png');
}
.contact-info  li.twitter a{
    background-image: url('../img/twitter.png');
}