header {
    background-color: darkblue;
    width: 75%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    max-width: 2000px;
    border-top: 1px solid black;
    border-right: 1px solid black;
    border-left: 1px solid black;
    min-width: 450px;
}

header a {
    color: white;
}

header a:hover {
    transition: none;
    color: white;
}

#logo_header img {
    height: 100px;
    width: 100px;
}

#logo_header_text {
    padding: 10px;
}

#logo_header_text h1 {
    margin: auto;
}

#logo_header_text h2 {
    margin: auto;
    font-size: 15px;
}

#logo_header {
    display: flex;
}

#log_block {
    display: flex;
    margin-right: 20px;
    margin-top: auto;
    margin-bottom: 10px;
    text-align: center;
}

#log_block h3 {
    margin: auto;
    font-size: 12px;
}