*{
    padding: 0;
    margin: 0;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}
header{
    background-color: teal;
    padding: 30px;
    color: white;
}
main{
    width: 100vw;
    text-align: center;
}
h1{
    font-size: 230%;
}
a{
    display: inline-block;
    background-color: lightgray;
    padding: 10px;
    border: 1px black solid;
    border-radius: 15px;
    font-size: 22px;
    width: 90px;
    margin: 10px;
    text-align: center;
}
a:hover{
    background-color: gray;
}
#parentdiv{
    width:100vw;
    text-align: center;
}
#maindiv{
    min-width: 300px;
    display: flex;
    justify-content: center;
    gap: 25px;
    margin: 15px;
}
.ardiv{
    border: 2px gray solid;
    min-height: 300px;
    
    border-radius: 20px;
    width: 47vw;

}
h2{
    display: flex;
    justify-self: center;
}
.oppg{
    width: 47vw;
    justify-content: center;
    display: flex;
    flex-wrap: wrap;
}