page_search.css

#myBtn {
    display: none;
    /* Hidden by default */
    position: fixed;
    /* Fixed/sticky position */
    bottom: 20px;
    /* Place the button at the bottom of the page */
    right: 30px;
    /* Place the button 30px from the right */
    z-index: 99;
    /* Make sure it does not overlap */
    border: none;
    /* Remove borders */
    outline: none;
    /* Remove outline */
    background-color: red;
    /* Set a background color */
    color: white;
    /* Text color */
    cursor: pointer;
    /* Add a mouse pointer on hover */
    padding: 15px;
    /* Some padding */
    border-radius: 10px;
    /* Rounded corners */
    font-size: 18px;
    /* Increase font size */
}

#myBtn:hover {
    background-color: #555;
    /* Add a dark-grey background on hover */
}

#txtvideo {
    width: 80%;
    margin: auto;
    text-align: center;
}

#txt-search-inner {
    text-transform: capitalize;
    font-weight: 700;
    font-size: 30px;
}

.button {
    width: 10%;
}

div.videothumbnail {
    margin: 5px;
    width: 360px;
    height: 320px;
    display: inline-block;
    position: relative;
}

div.videothumbnail:hover {
    transform: scale(1.04);
}

div.videothumbnail img {
    width: 100%;
    height: auto;
    padding: 0;
    border: 0;
}

span.desc {
    text-align: center;
    margin: auto;
    display: table;
    color: black;
}

.vungChon:hover {
    cursor: pointer;
}


/* css cua modal  */

body {
    margin: 2rem;
}

.modal-dialog {
    max-width: 800px;
    margin: 30px auto;
}

.modal-body {
    position: relative;
    padding: 0px;
}

.close {
    position: absolute;
    right: -30px;
    top: 0;
    z-index: 999;
    font-size: 5rem;
    font-weight: normal;
    color: white;
    opacity: 1;
}