body {
    margin: 0;
    padding: 0;
    height: 100%;
    min-height: fit-content;
    font-family: Open Sans,Helvetica Neue,Helvetica,Arial,나눔바른고딕,Nanum Barun Gothic,맑은고딕,Malgun Gothic,sans-serif;
}

header {
    border-bottom: 1px solid gray;
    padding: 30px;
    font-size: 30px;
    text-align: center;
    margin-left: 20px;
    margin-right: 20px;
    color: black;
}

.home-link {
    color: black;
}

footer {
    border-top: 1px solid gray;
    padding: 5px;
    text-align: center;
    margin-left: 20px;
    margin-right: 20px;
    font-size: 10px;
}

#content {
    opacity: 0;
    padding-top: 20px;
    padding-bottom: 20px;
    width: 85%;
    min-height: 100%;
    height: fit-content;
    margin: auto;
    font-family: Arial, sans-serif;
    transition-property: opacity;
    transition-duration: 2s;
}

img {
    width: 100%;
    box-shadow: 0px 5px 15px 0 #0000005e;
    border-radius: 5px;
}