.width100 {
    width: 100%;
}

.mt-20 {
    margin-top: 20px;
}

ul{
    list-style: none;
}

li{
    margin: 40px 0px 40px 0px; /* top right bottom left */
}

li:first-child{
    margin-top: 0px;
}

li:last-child{
    margin-bottom: 0px;
}