html{
    box-sizing: border-box;
}
*, *:before, *:after{
    box-sizing: inherit;
}

body{
    font-family: sans-serif;
    margin: 0;
    background-image: linear-gradient(260deg, #2376ae 0%, #c16ecf 100%);
}

a{
    color: white;
}

.item.large{
    font-size: 40px;
}
.item.small{
    font-size: 20px;
}
.item{
    background: rgba(255, 255, 255, 0.2);
    margin: 10px;
    padding: 20px;
    font-size: 30px;
}

/* flexbox */
.elements{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}
.item{
    flex: 0 1 calc(33.33% - 20px);
}