#header_content:hover {
    transform: scale(1.1);
}

#header_content {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bold {
    font-weight: 700;
}

.bolder {
    font-weight: 900;
}

.double {
    font-size: 130%;
    line-height: 88%;
}

header {
    width: 95%;
    left: 2.5%;
    position: fixed;
    background: #8c8c8c;
    opacity: 95%;
    border-radius: 20px;
}

img {
    border-radius: 10%;
}