html, body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* MAP SETTING AND SELECT BUTTON */
#map {
    width: 100%;
    height: 100vh;
    position: relative;
}
#selectContainer {
    position: fixed;
    display: flex;
    justify-content: center;
    z-index: 1000;
    width: 100%;
    padding: 10px 0;
}
#selectCountry {
    width: 200px;
    padding: 5px;
    border-radius: 4px;
}
.modal-backdrop {
    opacity: 0.2 !important;
}

/* LOADER SETTING */
#loaderContainer{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000000;
    display: none;
}
#loader{
    background: radial-gradient(rgb(216, 216, 216),rgba(65, 171, 93));
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    perspective: 200px;
}
#loading{
    width: 50px;
    height: 50px;
    margin-bottom: 5px;
    background-color: rgba(25, 139, 69);
    border-radius: 12px;
    animation: loading 1.5s ease-out infinite;
}
@keyframes loading{
    0%{transform: rotateX(0deg) rotateY(0deg);}
    65%{transform: rotateX(0deg) rotateY(180deg);}
    100%{transform: rotateX(180deg) rotateY(180deg);}
}

/* GROUPED CLUSTER ICONS STYLES */
.airportcluster {
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 50%;
    background-color: rgb(0, 174, 255);
    text-align: center;
}
.citycluster {
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 50%;
    background-color: hotpink;
    text-align: center;
}
.earthquakecluster {
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 50%;
    background-color: green;
    text-align: center;
}