*{
    margin:0.5vh;
    box-sizing: border-box;
}
body {
    height: 95vh;
    background-color: #34e7e4 ;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    text-align: center;
    color:white;
    font-size: 3vh;
    display: flex;
    flex-direction: column;
}
.main {
    display: flex;
    flex:1;  
}
main {
    background-color: #3c40c6;
    padding-top: 15px;
    padding-left: 2px;
    padding-right: 2px;
    flex: 1 1 150px; 
    line-height: 3.5vh;
    text-align: center;
    border-radius: 15px;
}