#page404 {
    padding-top: 200px;
    min-height: calc(100vh - 271px);
    box-sizing: border-box;
}

#page404 h3 {
    margin-bottom: 4%;
}

#page404 .txtCatch {
    font-size: 180%;
    font-weight: bold;
    text-align: center;
    margin-bottom: 4%;
}

#page404 .txtCatch+.txt {
    margin-top: 4%;
    text-align: center;
}

#page404 .btnStyle01 {
    text-align: center;
    margin-top: 7%;
}

#page404 .btnStyle01 a {
    display: inline-block;
    padding: 10px 20px;
    background-color: #2b2ba2;
    color: #FFF;
    margin: 0 10px 10px 0;
    border-radius: 10px;
    text-decoration: none;
}

#page404 .btnStyle01 a:hover {
    background: #000080;
}

@media screen and (max-width: 1024px) {
    #page404 {
        padding-top: 140px;
    }
}

@media screen and (max-width: 767px) {
    #page404 .txtCatch {
        font-size: 140%;
    }
}

@media screen and (max-width: 480px) {
    #page404 {
        padding-top: 100px;
    }
}