html {
    background-color: #ebebeb;
    font-size: 15px;
    color: black;
    font-family: "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ ProN W3", "メイリオ", "Meiryo", sans-serif;
}


table {
    margin: 0 auto 10px auto;
}


td {
    padding: 15px 10px;
    height: 30px;
}

input {
    font-size: 15px;
    line-height: 40px;
}


.login_button {
    font-family: "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ ProN W3", "メイリオ", "Meiryo", sans-serif;
    height: 40px;
    width: 200px;
    margin: 10px 0 5px 0;
    border: none;
    border-radius: 5px;
    background-color: black;
    color: white;
}

.login_button:hover {
    background-color: dimgray;
}

.login_field {
    margin: 0 0 20px 0;
}

.login_field_title {
    font-size: 15px;
    font-weight: bold;
    text-align: left;
    margin-bottom: 5px;
}

.login_field_input input {
    width: calc(100% - 11px);
    height: 35px;
    border: none;
    border: solid 1px #ccc;
    border-radius: 7px;
    font-size: 16px;
    padding-left: 7px;

}

.login_field_input input:focus {
    outline: solid 1px black;
}

#login_title {
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: bold;
}

@media (max-width: 670px ) {
    form {
        margin: 30px 20px;
        text-align: center;
        padding: 25px 30px 25px 30px;
        background-color: white;
        border-radius: 5px;
    }
}

@media (min-width: 670px) {
    form {
        width: 400px;
        margin: 30px auto;
        text-align: center;
        padding: 25px 30px 25px 30px;
        background-color: white;
        border-radius: 5px;
    }
}