*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
.container{
    width: 100%;
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),url(./images/background.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}
nav{
    width: 100%;
    height: 10vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 3em;
    background: #3a76d7;
}
.logo a{
    text-decoration: none;
}
.logo h1{
    color: #fff;
    font-size: 20px;
}
.menu{
    display: flex;
    align-items: center;
    list-style-type: none;
}
.menu li {
    padding: 0 0 0 2em;
}
.menu li a{
    text-decoration: none;
    color: #fff;
}
.bar, .close{
    display: none;
}
.contents{
    width: 100%;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
}
.contents h1{
    font-size: 20px;
    color: #fff;
}
@media (max-width:800px) {
    .bar, .close{
        display: flex;
    }
    nav{
        padding: 0 1em;
    }
    .menu {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: #3a76d7;
        flex-direction: column;
        justify-content: center;
        transform: translateX(-100%);
        transition: 0.4s;
    }
    .menu li{
        padding: 0;
        margin: 1.5em;
    }
    .close{
        position: absolute;
        top: 1em;
        right: 1em;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        border-radius: 5px;
    }
    .close img{
        height: 40px;
    }
    .bar{
        cursor: pointer;
    }
    .show-menu{
        transform: translateX(0%);
        transition: 0.4s;
    }
    .stuck-scroll{
        overflow: hidden;
    }
}