body {
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
    justify-content: center;
}

.block_form {
    margin-top: 50px;
    background: #f0f0f0;
    padding: 20px 30px;
    box-sizing: border-box;
    width: 500px;
}

.error_block {
    text-align: center;
    color: red;
    margin: 10px 0 30px;
}

.message_block {
    text-align: center;
    font-weight: bold;
    margin: 10px 0 30px;
}

.inputLabel {
    margin-top: 16px;
    margin-bottom: 8px;
}

.inputFlex {
    display: flex;
}

.inputFlex > div {
    display: inline-block;
    margin-right: 20px;
}

.form-control {
    background-color: white;
    outline: 0;
    height: 30px;
    padding: 4px 8px;
    width: 100%;
    margin: 0;
    position: relative;
    outline: none;
    margin: 0;
    border: 1px solid #e1e1e1;
    border-radius: 6px;
    box-sizing: border-box;

    transition: box-shadow 0.2s;
}

.form-control:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 3px #bcdffd;
}

.submitButtonBlock {
    display: flex;
    justify-content: center;
    margin: 30px 0 20px 0;
}

.submitButton {
    color: white;
    background-color: #2084d8;
    font-size: 14px;
    border-radius: 6px;
    min-width: 120px;
    padding: 10px;
    outline: none;
    border: none;
    transition: box-shadow 0.2s;
    cursor: pointer;
}

.submitButton:hover {
    background-color: #1c73bd;
}

.submitButton:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 3px #bcdffd;
}

@media only screen and (max-width: 600px) {
    body {
        font-size: 16px;
        background: #f0f0f0;
    }
    .container {
        display: block;
        justify-content: normal;
    }
    .block_form {
        margin-top: 0;
        width: 100%;
    }
    .submitButton {
        font-size: 16px;
    }
}