.m-signature-pad {
  position: relative;
  font-size: 10px;
  width: 1000px;
  height: 400px;
  top: 50%;
  left: 50%;
  margin-left: -500px;
  <!-- margin-top: -200px; -->
  border: 1px solid #e8e8e8;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.08) inset;
  border-radius: 4px;
}

.m-signature-pad--body {
  position: absolute;
  left: 20px;
  right: 20px;
  top: 20px;
  bottom: 80px;
  border: 1px solid #f4f4f4;
}

.m-signature-pad--body
  canvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.02) inset;
  }
  
 
.m-signature-pad--footer {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  height: 60px;
}

.m-signature-pad--footer
  .description {
    color: #C3C3C3;
    text-align: center;
    font-size: 1.2em;
    margin-top: 1em;
  }

.m-signature-pad--footer
  .left, .right {
    position: absolute;
    bottom: 0;
  }

.m-signature-pad--footer
  .left {
    left: 0;
  }

.m-signature-pad--footer
  .right {
    right: 0;
  }