* {
    padding: 0;
    margin: 0;
}

.pdf {
    display: block;
    padding: 0;
    margin: 0;

}

/* --------------------------Navbar or Menu bar opening CSS Part ----------------------------------------------------- */
.topnav {
    overflow: hidden;
    background-color: #333;
}

.topnav a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
}

.topnav a:hover {
    background-color: #ffffff;
    color: black;
}

.topnav a.active {
    background-color: #04AA6D;
    color: white;
}

.topnav .icon {
    display: none;
}
 
@media screen and (max-width: 600px) {
    .topnav a:not(:first-child) {
        display: none;
    }

    .topnav a.icon {
        float: right;
        display: block;
    }
}

@media screen and (max-width: 600px) {
    .topnav.responsive {
        position: relative;
    }

    .topnav.responsive .icon {
        position: absolute;
        right: 0;
        top: 0;
    }

    .topnav.responsive a {
        float: none;
        display: block;
        text-align: left;
    }
}

/* ---------------------------Navbar or Menu bar Closing CSS Part------------------------------------------- */
.page-title h2 {
    margin: 0;
    padding: 0;
}

.heading-2 {
    font-size: 40px;
    line-height: 50px;
}

@media (max-width:768px) {
    .heading-2 {
        font-size: 20px;
        line-height: 30px;
    }
}

.Semester {
    background: linear-gradient(#03ff64, #d1ff02e2)
}

.semester-name {
    padding-top: 0px;
    padding-bottom: 0px
}

@media (min-width:768px) and (max-width:991px) {
    .semester-name {
        padding-top: 8px;
        padding-bottom: 8px;
    }
}

@media (max-width:768px) {
    .semester-name {
        padding-top: 8px;
        padding-bottom: 8px;
    }
}

.white-text h2 {
    color: #000000 !important
}

.text-center {
    text-align: center !important
}

/* ---------------------------Button opening CSS Part------------------------------------------- */
.button {
    background-color: #4CAF50;
    /* Green */
    color: rgb(245, 245, 245);
    padding: 10px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 2px 2px;
    transition-duration: 0.3s;
    cursor: pointer;
}

.button1 {
    background-color: rgb(231, 227, 227);
    color: black;
    border: 0px solid #4CAF50;

}

.button1:hover {
    background-color: #13f51b;
    color: rgb(0, 0, 0);
}

.button2 {
    background-color: white;
    color: black;
    border: 0px solid #008CBA;

}

.button2:hover {
    background-color: #05ff44;
    color: rgb(0, 0, 0);
}

/* ---------------------------Button Closing CSS Part------------------------------------------- */
/* ---------------------------Button Closing CSS Part------------------------------------------- */
.rect-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    max-width: 1800px;
    margin: 0 auto;
}
.rect-container:hover{
    color: crimson;
}

.rect {
    background-color: #f2f2f2;
    border: 1px solid #000000;
    border-radius: 5px;
    box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.3);
    padding: 1px;
    width: calc(50% - 20px);
    text-align: center;
    padding-top: 8px;
}
.rect:hover{
    color: #05ff44; 

}

.rect h3 {
    font-size: 20px;
    margin-bottom: 10px;
    text-decoration: #05ff44;
}


@media (max-width:720px) {
    .rect h3 {
        font-size: 16px;
        line-height: 20px;

    }

    .rect-container {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .rect {
        width: 89%;
    }
    .rect {
    max-width: 1800px;

    }
}

/* next below */
.rectangular-box {
    width: 100%;
    max-width: 3000px;
    height: 200px;
    background-color: #fcfcfc;
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0px;
    box-shadow: 5px 5px 5px 5px #000000;

}

@media only screen and (max-width: 600px) {
    .rectangular-box {
        height: 100px;
    }
}
a{text-decoration: none;

}
a:hover{
    color:#05ff44;
}