.portfolio a {
    text-decoration: none;
    font-size: 15px;
    font-family: verdana;
    font-weight: bold;
    height: 90px;
    margin: 5px 0;
    display: inline-block;
    background-color: black;
    color: white;
    line-height: 90px;
    text-align: center;
    transition: 285ms;
}

.portfolio a:hover {
    background-color: white;
    color: black;
    width: 100%;
}

.portfolio {
    color: white;
    font-family: century gothic;
}
.portfolio ul {
    list-style:none;
}


.portfolio h1 {
    font-size: 25px;
    text-align: center;
    background-color: green;
    border-bottom: 5px solid black;
    text-transform: uppercase;
}


.illustration {
    width: 95%;
}
.graphic-design {
    width: 95%;
}
.web-design {
    width: 95%;
}