Loader

  <svg>
    <g>
      <path d="M 50,100 A 1,1 0 0 1 50,0"/>
    </g>
    <g>
      <path d="M 50,75 A 1,1 0 0 0 50,-25"/>
    </g>
    <defs>
      <linearGradient id="gradient" x1="0%" y1="0%" x2="0%" y2="100%">
        <stop offset="0%" style="stop-color:#FF56A1;stop-opacity:1" />
        <stop offset="100%" style="stop-color:#FF9350;stop-opacity:1" />
      </linearGradient>
    </defs>
  </svg>

html, body {
	width: 100%;
	height: 100%;
  }
  
  body {
	display: flex;
	align-items: center;
	justify-content: center;
  }
  
  svg {
	overflow: visible;
	width: 100px;
	height: 150px;
  }
  svg g {
	animation: slide 2s linear infinite;
  }
  svg g:nth-child(2) {
	animation-delay: 0.5s;
  }
  svg g:nth-child(2) path {
	animation-delay: 0.5s;
	stroke-dasharray: 0px 158px;
	stroke-dashoffset: 1px;
  }
  svg path {
	stroke: url(#gradient);
	stroke-width: 20px;
	stroke-linecap: round;
	fill: none;
	stroke-dasharray: 0 157px;
	stroke-dashoffset: 0;
	animation: escalade 2s cubic-bezier(0.8, 0, 0.2, 1) infinite;
  }
  
  @keyframes slide {
	0% {
	  transform: translateY(-50px);
	}
	100% {
	  transform: translateY(50px);
	}
  }
  @keyframes escalade {
	0% {
	  stroke-dasharray: 0 157px;
	  stroke-dashoffset: 0;
	}
	50% {
	  stroke-dasharray: 157px 157px;
	  stroke-dashoffset: 0;
	}
	100% {
	  stroke-dasharray: 157px 157px;
	  stroke-dashoffset: -156px;
	}
  }