html, body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #7fb2ff;
}
.display {
    margin-top: 50px;
}
.display .head {
    color: white;
    font-size: 18px;
    display: flex;
    background-color: black;
    width: 750px;
    height: auto;
    border-top-right-radius: 10px;
    border-top-left-radius: 10px;
    align-items: center;
    padding-top: 14px;
    padding-bottom: 14px;
    padding-left: 14px;
    padding-right: 14px;
    user-select: none;
}
.display .head .a {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: red;
    margin-right: 5px;
}
.display .head .b {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: darkorange;
    margin-right: 5px;
}
.display .head .c {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: green;
    margin-right: 10px;
}
.display .head p {
    margin: 0;
}
.display .body {
    text-align: center;
    background-color: white;
    width: 750px;
    height: 500px;
    padding-top: 14px;
    padding-bottom: 14px;
    padding-left: 14px;
    padding-right: 14px;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
}
.display .body .corp {
    display: flex;
    align-items: center;
    justify-content: center;
}
.display .body .block {
    display: block;
    text-align: center;
    background-color: #c0d9ff;
    width: 175px;
    height: 175px;
    border-color: #7fb2ff;
    border-style: solid;
    border-radius: 5px;
    margin: 5px;
}
.display .body .contents_icon {
    font-size: 75px;
    margin-bottom: 5px;
    transition: transform 0.3s ease;
}
.display .body .contents_icon:hover {
    transform: scale(1.2);
}
.display .body p {
    margin-top: 0px;
    margin-bottom: 0px;
    color: #aa5df3;
}
.display .body a {
    text-decoration: none;
}
@media (max-width: 750px) {
    .display .head {
        width: 100%;
    }
    .display .body {
        width: 100%;
    }
}