<div class="loader"></div>

.loader {
  width: 120px;        /* the size */
  padding: 15px;       /* the border thickness */
  background: #07e8d6; /* the color */
  
  aspect-ratio: 1;
  border-radius: 50%;
  mask: 
    conic-gradient(#0000,#000) subtract,
    linear-gradient(#000 0 0) content-box;
  box-sizing: border-box;
  animation: load 1s linear infinite;
}

@keyframes load {
  to{transform: rotate(1turn)}
}


body {
  margin: 0; 
  display: grid;
  min-height: 100vh;
  place-content: center;
  background: linear-gradient(45deg,#ccc,#fff);
}