nav.css

/* The sidebar menu */
.sidebar {
    height: 100%; /* 100% Full-height */
    width: 0; /* 0 width - change this with JavaScript */
    position: fixed; /* Stay in place */
    z-index: 1; /* Stay on top */
    top: 0;
    right: 0;
    background-color: #111; /* Black*/
    overflow-x: hidden; /* Disable horizontal scroll */
    padding-top: 60px; /* Place content 60px from the top */
    transition: 0.5s; /* 0.5 second transition effect to slide in the sidebar */
}

/* The sidebar links */
.sidebar a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 20px;
    color: #818181;
    display: block;
    transition: 0.3s;
    text-align: right;
    margin-right: 50px;
}

/* When you mouse over the navigation links, change their color */
.sidebar a:hover {
    color: #f1f1f1;
}

/* Position and style the close button (top right corner) */
.sidebar .closebtn {
    font-size: 20px;
    padding: 10px 20px;
    border: none;
    position: absolute;
    top: 3%;
    right: 3%;
    margin-bottom: 10px;
    margin-right: 30px;

    /* margin-left: 50px; */
}

/* The button used to open the sidebar */
.openbtn {
    font-size: 20px;
    cursor: pointer;
    background-color: transparent;
    color: white;
    padding: 10px 15px;

    border: none;
}

.openbtn:hover {
    color: #444;
}

.galaxy {
    height: 120px;
    background-image: url(image/wobg_w.png);
    background-color: transparent;
    background-size: 80px;
    background-repeat: no-repeat;
    text-align: center;
    font-size: large;
    font-style: italic;
    color: white;
    font-weight: bold;
    line-height: 120px;
    /* background-attachment: fixed; */

    /* how to fix */
}
.galaxy a {
    display: inline-block;
    text-decoration: none;
    font-size: 50px;
    color: rgb(238, 238, 238);
}

.body_bg {
    /* background-color: black;
      background-image: url(dishes.jpg);
      background-position: center 120px;
      background-attachment: fixed;
      background-repeat: no-repeat; */
    background-color: rgba(0, 0, 0);
    background: rgba(0, 0, 0) url(image/galaxy.jpg) center fixed no-repeat;
    background-size: cover;
}

/* Style page content - use this if you want to push the page content to the right when you open the side navigation */
#main {
    transition: 0.5s; /* If you want a transition effect */
    padding: 20px;
    position: absolute;
    top: 1%;
    right: 1%;
}

.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
    height: 50%;
}

.cv {
}

.cv a:link {
    color: white;
    background-color: transparent;
    text-decoration: none;
}

.cv a:visited {
    color: gray;
    background-color: transparent;
    text-decoration: none;
}

.about-text {
    width: 50%;
    /* height: 200px; */
    background-color: black;
    border: 1px solid gray;
    color: white;
    padding-top: 10px;
    padding-left: 30px;
    padding-right: 30px;
    margin: 0 auto;
    margin-top: 20px;
    font-family: Garamond, Verdana, Georgia, Tahoma, sans-serif;
    text-align: left;
    font-size: 15px;
}

.page-footer {
    color: gray;
    /* position: absolute; */
    bottom: 0;
    /* width: 50%; */
    height: 2.5rem;
    font-family: Garamond, Verdana, Georgia, Tahoma, sans-serif;
}

.about-text p {
    margin-bottom: 15px;
}

.about-contact {
    width: 80%;
    /* height: 200px; */
    background-color: black;
    color: white;
    padding-top: 10px;
    padding-left: 30px;
    padding-right: 30px;
    margin: 0 auto;
    margin-top: 20px;
    font-family: Garamond, Verdana, Georgia, Tahoma, sans-serif;
    text-align: center;
    font-size: 1vw;
    text-align: center;
}

.displayMinblock {
    height: 300px;
    width: 300px;
    display: inline-block;
    border-radius: 5%;
    /* float: right; */
    /* padding-top: 12px;
    border-radius: 16px;
    */
}

.img_display {
    color: black;
    position: absolute;
}

.weather_dispay {
    float: right;
    text-align: center;
    color: white;
    font-family: Garamond, Verdana, Georgia, Tahoma, sans-serif;
    border: 2px solid rgb(176, 176, 176);
}

.photo_style {
    width: 500px;
    height: auto;
    border-radius: 5%;
}

/* On smaller screens, where height is less than 450px, change the style of the sidenav (less padding and a smaller font size) */
@media screen and (max-height: 450px) {
    .sidebar {
        padding-top: 15px;
    }
    .sidebar a {
        font-size: 18px;
    }
}

@keyframes fade {
    from {
        opacity: 0.4;
    }
    to {
        opacity: 1;
    }
}

@media screen and (max-width: 1200px) {
    .weather_dispay {
        display: none;
    }
    .img_display {
        display: block;
        margin-left: auto;
        margin-right: auto;
        width: 100%;
        height: auto;
        position: initial;
    }
}

@media screen and (max-width: 800px) {
    .galaxy {
        font-size: medium;
        background-size: 50px;
    }
    .galaxy a {
        font-size: medium;
    }
    .about-contact {
        font-size: 12px;
    }
    .about-text {
        font-size: 12px;
        width: 80%;
    }
    .photo_style {
        width: 300px;
    }
    .weather_dispay {
        display: none;
    }
    .center {
        width: 80%;
    }
    .img_display {
        display: block;
        margin-left: auto;
        margin-right: auto;
        width: 100%;
        height: auto;
        position: initial;
    }
}