* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: arial;
  background-image: url('bg.png');
}

.form-login {
  width: 400px;
  height: 340px;
  background: #4e4d4d;
  margin: auto;
  margin-top: 60px;
  box-shadow: 7px 13px 37px #000;
  padding: 20px 30px;
  border-top: 4px solid #017bab;
  color: white;
}

.form-login h5 {
  margin: 0;
  text-align: center;
  height: 40px;
  margin-bottom: 30px;
  border-bottom: 1px solid;
  font-size: 20px;
}

.controls {
  width: 100%;
  border: 1px solid #017bab;
  margin-bottom: 15px;
  padding: 11px 10px;
  background: #252323;
  font-size: 14px;
  font-weight: bold;
}

.buttons {
  width: 100%;
  height: 40px;
  background: #017bab;
  border: none;
  color: white;
  margin-bottom: 16px;
}

.form-login p{
  height: 40px;
  text-align: center;
  border-bottom: 1px solid;
}

.form-login a {
  color: white;
  text-decoration: none;
  font-size: 14px;
}

.form-login a:hover {
  text-decoration: underline;
}
.ov-btn-slide-left {
  background: #fff; /* color de fondo */
  color: #4741d7; /* color de fuente */
  border: 2px solid #4741d7; /* tamaño y color de borde */
  padding: 16px 20px;
  border-radius: 3px; /* redondear bordes */
  position: relative;
  z-index: 1;
  overflow: hidden;
  display: inline-block;
}
.ov-btn-slide-left:hover {
  color: #fff; /* color de fuente hover */
}
.ov-btn-slide-left::after {
  content: "";
  background: #4741d7; /* color de fondo hover */
  position: absolute;
  z-index: -1;
  padding: 16px 20px;
  display: block;
  top: 0;
  bottom: 0;
  left: -100%;
  right: 100%;
  -webkit-transition: all 0.35s;
  transition: all 0.35s;
}
.ov-btn-slide-left:hover::after {
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  -webkit-transition: all 0.35s;
  transition: all 0.35s;
}