.head {
    background-color: #003344;
    color: white;
    font-weight: bold;
    font-size: 30px;
    text-align: center;
    padding: 10px;
}

.box {
    width: 100%;
    overflow: hidden;
}

ul {
    width: 100%;
    height: 100%;
    display: table;
    border-spacing: 10px;
}

.boxs {
    width: 280px;
    padding: 10px;
    margin: 10px;
    background-color: rgba(255,255,255, .75);
    display: inline-block;
    vertical-align: top;
    text-align: center;
    height: 175px;
    line-height: 30px;
}

.box li {
    display: table-row;
}

.box li div {
    display: table-cell;
    text-align: center;
    border-radius: 10px;
}

.button {
	background-color: rgba(43, 43, 43, 0.226);
    width: 120px;
    height: 60px;
    color: white;
    font-size: 20px;
    border-radius: 10px;
}

@media screen and (max-width:600px) {
    .head {
        font-size: 5vw;
    }
}