:root {
    --primary-color: #333;
    --secondary-color: #444;
    --overlay-color: rgba(0, 0, 0, 0.7);
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    line-height: 1.6;
    color: #333;
    font-size: 1.1rem; 
    font-family: 'verdana', sans-serif; 
}

h1,
h2,
h3,
h4 {
    font-family: 'verdana', sans-serif; 
    font-style: italic; 
    font-weight: 300;
}

.section-a,
.section-b,
.section-c,
.section-footer{
    text-align: center;
}

.section-a img{
    width: 60%;
    margin: 0 auto;
    padding-top:60px;
}

.section-c{
    margin: 1rem;  
}

.section-c h3{
    margin: 3rem 0 1rem 0; 
    font-size: 1.25em; 
}
.section-c a,
.section-footer a{
    padding: 1rem;
    color:#666;
}

.section-c a:hover,
.section-c a:focus,
.section-footer a:hover,
.section-footer a:focus
{
    color:#999;
}

.section-c a:visited,
.section-footer a:visited{
    color:#ccc;
}


.section-footer{
    background-color: #333;
    margin-top:3rem;
    padding: 1rem 0 2rem 0; 

}

.section-footer h3{
    padding: 1rem;
    color:#666;
    font-size: 1.25em; 
}

@media (max-width: 700px) {
    
    .section-a img{
        width: 100%;
        margin: 0 auto;
        padding-top: 60px;
    }

    .section-b h2{
        padding-top: 40px;
    }
}