.overlay {
    /* Height & width depends on how you want to reveal the overlay (see JS below) */
    height: 100%;
    width: 0;
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    background-color: rgb(179, 229, 252); /* Black fallback color */
    background-color: rgba(179, 229, 252, 0.9); /* Black w/opacity */
    overflow-x: hidden; /* Disable horizontal scroll */
    transition: 0.5s; /* 0.5 second transition effect to slide in or slide down the overlay (height or width, depending on reveal) */
    z-index: 30;
}

/* Position the content inside the overlay */
.overlay-content {
    position: absolute;
    /*top: 25%;*/ /* 25% from the top */
    width: 100%; /* 100% width */
    text-align: center; /* Centered text/links */
   
    height:100%;
   margin-top: 30px; /* 30px top margin to avoid conflict with the close button on smaller screens */
    color:black;
    top: 0px;
    left: 50%;
    transform: translateX(-50%);
}

/* The navigation links inside the overlay */
.overlay a {
    padding: 8px;
    text-decoration: none;
    font-size: 36px;
    color: #B3E5FC;
    display: block; /* Display block instead of inline */
    transition: 0.3s; /* Transition effects on hover (color) */
}

/* When you mouse over the navigation links, change their color */
.overlay a:hover, .overlay a:focus {
    color:black ;
}

/* Position the close button (top right corner) */
.overlay .closebtn {
    position: absolute;
    top: 10px;
    right: 35px;
    font-size: 60px;
}

/* When the height of the screen is less than 450 pixels, change the font-size of the links and position the close button again, so they don't overlap */
@media screen and (max-height: 450px) {
    .overlay a {font-size: 20px}
    .overlay .closebtn {
        font-size: 40px;
        top: 15px;
        right: 35px;
    }
}

.overlaySemDelay {
    /* Height & width depends on how you want to reveal the overlay (see JS below) */
    height: 100%;
    width: 100%;
    display:none;
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    background-color: rgb(179, 229, 252); /* Black fallback color */
    background-color: rgba(179, 229, 252, 0.9); /* Black w/opacity */
    overflow-x: hidden; /* Disable horizontal scroll */
   
    z-index: 30;
}

/* Position the content inside the overlay */
.overlaySemDelay-content {
    position: absolute;
    /*top: 25%;*/ /* 25% from the top */
    width: 100%; /* 100% width */
    text-align: center; /* Centered text/links */
    height: 100%;
    /*margin-top: 30px;*/ /* 30px top margin to avoid conflict with the close button on smaller screens */
    color: black;
    top: 0px;
    left: 50%;
    transform: translateX(-50%);
}

/* The navigation links inside the overlay */
.overlaySemDelay a {
    padding: 8px;
    text-decoration: none;
    font-size: 36px;
    color: #B3E5FC;
    display: block; /* Display block instead of inline */
   
}