style.css

@import url('https://fonts.googleapis.com/css2?family=El+Messiri:wght@600&family=Rubik:wght@300;400;500&display=swap');
body {
    margin: 0;
    padding: 0;
}
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}
body {
    background-image: linear-gradient( 99.9deg, rgba(27,24,31,1) 21.2%, rgba(50,4,89,1) 84.8% );
    min-height: 100vh;
    overflow-y: hidden;
}
.box{
    padding: 15px;
}
.box .video {
    color: white;
    margin-bottom: 20px;
    padding: 10px;
    background-color: rgba(160, 160, 160, 0.3);
    backdrop-filter: blur(40px);
    width: 100%;
    border-radius: 20px;
    min-height: 110px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-direction: column;
}
.box p {
    margin: 25px 0 10px 0;
    text-align: center;
}



.parent {
    position: absolute;
    font-family: 'El Messiri', sans-serif;
    font-family: 'Rubik', sans-serif;
    width: 100%;
    height: 100%;
    background-color: #ffcb3e;
    z-index: 9999999999999999999999999999999999999;
}
.parent .child {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 200px;
    background-color: #fff;
}
@media (max-width:360px) {
    .parent .child {
        width: 270px;
    }
}
.child .head-alert{
    width: 100%;
    height: 40px;
    background-color: #eee;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.head-alert .tit {
    margin-left: 10px;
    font-weight: 400;
}
.head-alert .close-al {
    width: 40px;
    height: 40px;
    background-color: rgb(255, 50, 50);
    position: relative;
    cursor: pointer;
    transition: 0.3s linear;
}
.head-alert .close-al:hover {
    background-color: rgb(255, 0, 0);
}
.head-alert .close-al::before, .head-alert .close-al::after{
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 25px;
    height: 2px;
    background-color: white;
}
.head-alert .close-al::before {
    transform: translate(-50%, -50%) rotate(-45deg);
}
.head-alert .close-al::after {
    transform: translate(-50%, -50%) rotate(45deg);
}
.offer {
    height: calc(100% - 40px);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 10px;
}
.offer p{
    text-align: center;
    line-height: 30px;
}
.offer a {
    text-decoration: none;
    padding: 7px;
    outline: 2px solid #000;
    color: #fff;
    position: relative;
    overflow: hidden;
    z-index: 3;
    transition: 0.5s ease;
}
.offer a::before {
    content: "";
    position: absolute;
    z-index: -1;
    width: 210px;
    height: 210px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(255, 0, 0, 0.909);
    border-radius: 50%;
    transition: 0.5s linear;
}