* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    
}
body {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
.loader {
    margin: 5px;
}
.line {
    border: 7.5px solid #00897b;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius:50%;
    margin: 3px;
    border-left-color: transparent;
    border-top-color: transparent;
    animation: loader 5s cubic-bezier(0.35, -0.14, 0.79, 1.22) infinite;
}
@keyframes loader {
    100% {
        transform: rotate(1turn);
    }
}
.loader2 .line {
    border-color: rgb(243, 10, 10);
    border-left-color: transparent;
    border-right-color: transparent;
    animation-timing-function: ease-in-out;
}
.loader3 .line {
    border-color: #5b6adc;
    border-right-color: transparent;
    animation-timing-function: linear;

}
.nav a {
    margin: 0 10px;
}