/* From Uiverse.io by satyamchaudharydev */ 
.loader {
    --loader: rgb(49, 180, 255);
    --loader-size: 30px;
    position: relative;
    width: 100px;
    height: 40px;
    overflow: hidden;
    transition: .5s;
    letter-spacing: 2px
   }
   
   .loader span {
    position: absolute;
   }
   
   .loader span:nth-child(1) {
    top: 0;
    left: -100%;
    width: 100%;
    height: var(--loader-size);
    background: linear-gradient(90deg, transparent, var(--loader));
    animation: loader-anim1 1s linear infinite;
   }
   
   @keyframes loader-anim1 {
    0% {
     left: -100%;
    }
   
    50%,100% {
     left: 100%;
    }
   }
   
   .loader  span:nth-child(2) {
    top: -100%;
    right: 0;
    width: var(--loader-size);
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--loader));
    animation: loader-anim2 1s linear infinite;
    animation-delay: .25s
   }
   
   @keyframes loader-anim2 {
    0% {
     top: -100%;
    }
   
    50%,100% {
     top: 100%;
    }
   }
   
   .loader span:nth-child(3) {
    bottom: 0;
    right: -100%;
    width: 100%;
    height: var(--loader-size);
    background: linear-gradient(270deg, transparent, var(--loader));
    animation: loader-anim3 1s linear infinite;
    animation-delay: .5s
   }
   
   @keyframes loader-anim3 {
    0% {
     right: -100%;
    }
   
    50%,100% {
     right: 100%;
    }
   }
   
   .loader span:nth-child(4) {
    bottom: -100%;
    left: 0;
    width: var(--loader-size);
    height: 100%;
    background: linear-gradient(360deg, transparent, var(--loader));
    animation: loader-anim4 1s linear infinite;
    animation-delay: .75s
   }
   
   @keyframes loader-anim4 {
    0% {
     bottom: -100%;
    }
   
    50%,100% {
     bottom: 100%;
    }
   }