*{
    box-sizing: border-box;
}
body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
    background-color: aquamarine;
}
.header{
    padding: 30px;
    font: size 90px;
    text-align:center;
    background: white;
}
.row {
    display: flex;
}
.leftcolum{
    width: 75%;
}
.rightcolum {
    width: 25%;
    padding-left: 20px;
}
.card {
    background-color: blueviolet;
    padding-top: 50px;
    margin-top: 50px;
}
i{
  font-size: 100px !important;
padding-right: 20px;
}
.footer{
    padding: 20px;
    text-align: center;
    background: cyan;
    margin-top: 20px;
}
.card:hover {
    border: 3px solid black;
    background: beige;
}
.modalDialog{
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: black;
    display: none;
}
.modalDialog:target{
    display: block;
}
.modalDialog  > div{
    width: 400px;
    position: relative;
    margin: 10% auto;
    padding: 5px 20px 13px 20px;
    border-radius: 10px;
    background: azure;
}