body {
    background-color: aliceblue;
    margin: 0px;
}
.box1 {
    text-align: left;
    position: absolute;
    top: 30px;
    left: 100px;
    user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
}
.upper {
    color: rgb(255, 115, 0);
    font-weight: bolder;
    font-family: sans-serif;
    font-size: 45px;
    letter-spacing: -10px;
}
.lower {
    color: rgb(255, 183, 124);
    /* font-weight: bold; */
    font-family: sans-serif;
    font-size: 45px; 
    letter-spacing: -5px;
}


.box2 {
    margin-left: 100px;
    margin-top: 20px;
}
#contents {
    background-color: white;
    border: none;
    border-radius: 2px;
}

.menu {
    width: 1080px;
    height: 50px;
    background-color: rgb(255, 183, 124);
    margin-left: 100px;
    margin-top: 100px;
    border-radius: 2px;
}
ul {
    list-style: none;
    text-decoration: none;
    padding: 0;  
    user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
}
li {
    display: inline-block;
    width: 266px;
    height: 50px;
    margin-left: 80px;
    margin-top: 15px;
    margin: 0;
    text-align: center;
    /* transform: translateX(30deg);
    -moz-transform: translateX(30deg);
    -ms-transform: translateX(30deg);
    -o-transform: translateX(30deg);
    -webkit-transform: translateX(30deg);
    animation: li .2s infinite; */
}
.row_menu {
    position: relative;
    top: 15px;
}
a {
    text-decoration-line: none;
    font-family: youyuan;
    font-size: 16px;
    color: white;
}
li:hover {
    background-color: rgb(255, 115, 0);
}
/* @keyframes li {
    0%{
        transform: translateX(30deg);
    }
} */
.row_menu:active {
    color: rgb(255, 183, 124);
}