wave.svg

<svg width="800" height="600" xmlns="http://www.w3.org/2000/svg">

 <g>
  <title>Layer 1</title>
  <line stroke="#000" stroke-linecap="undefined" stroke-linejoin="undefined" id="svg_1" y1="245" y2="230" x1="225" x2="225" fill="none"/>
  <line stroke="#000" stroke-linecap="undefined" stroke-linejoin="undefined" id="svg_2" x1="225" x2="255" y1="230" y2="230" fill="none"/>
  <line stroke="#000" stroke-linecap="undefined" stroke-linejoin="undefined" id="svg_3" y1="230" y2="260" x1="255" x2="255" fill="none"/>
  <line stroke="#000" stroke-linecap="undefined" stroke-linejoin="undefined" id="svg_4" x1="255" x2="285" y1="260" y2="260" fill="none"/>
  </g>
</svg>