html,
body {
  height: 100%;
}

body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}

.izquierda {
  text-align: left !important;
}

.form-signin {
  width: 100%;
  max-width: 330px;
  padding: 15px;
  margin: auto;
}
.form-signin .checkbox {
  font-weight: 400;
}
.form-signin .form-control {
  position: relative;
  box-sizing: border-box;
  height: auto;
  /* padding: 10px; */
  font-size: 16px;
}
.form-signin .form-control:focus {
  z-index: 2;
}
.form-signin input[type="email"] {
  margin-bottom: -1px;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}
.form-signin input[type="password"] {
  margin-bottom: 10px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

::placeholder {color:#ccc!important;}
    
*:focus::-webkit-input-placeholder { color:transparent!important; } /* Chrome <=56, Safari < 10 */
*:focus:-moz-placeholder {  color:transparent!important;} /* FF 4-18 */
*:focus::-moz-placeholder {  color:transparent!important;} /* FF 19-50 */
*:focus:-ms-input-placeholder {  color:transparent!important;} /* IE 10+ */
*:focus::placeholder {  color:transparent!important;} /* Modern Browsers */