form > label {
    color: #fff !important;
}
.centrada {
    /* z-index: 0; */
    padding: 12px 12px;
    border-radius: 4px 4px;
    width: 21%;
    top: 50px;
    min-width: 200px;
    margin: 5% 60%;
    background: #a0a0a0;
    border: solid 1px #656565;
    /*text-align: center !important;*/    
    /*background: -moz-linear-gradient(top, rgba(53,53,53,0.92) 3%, rgba(82,82,82,0.92) 54%, rgba(109,109,109,0.44) 100%); /* FF3.6+ */
    /*background: -webkit-gradient(linear, left top, left bottom, color-stop(3%,rgba(53,53,53,0.92)), color-stop(54%,rgba(82,82,82,0.92)), color-stop(100%,rgba(109,109,109,0.44)));*/ /* Chrome,Safari4+ */
    /*background: -webkit-linear-gradient(top, rgba(53,53,53,0.92) 3%,rgba(82,82,82,0.92) 54%,rgba(109,109,109,0.44) 100%);*/ /* Chrome10+,Safari5.1+ */
    /*background: -o-linear-gradient(top, rgba(53,53,53,0.92) 3%,rgba(82,82,82,0.92) 54%,rgba(109,109,109,0.44) 100%);*/ /* Opera 11.10+ */
    /*background: -ms-linear-gradient(top, rgba(53,53,53,0.92) 3%,rgba(82,82,82,0.92) 54%,rgba(109,109,109,0.44) 100%);*/ /* IE10+ */
    /*background: linear-gradient(to bottom, rgba(53,53,53,0.92) 3%,rgba(82,82,82,0.92) 54%,rgba(109,109,109,0.44) 100%);*/ /* W3C */
    /*filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eb353535', endColorstr='#706d6d6d',GradientType=0 );*/ /* IE6-9 */*/

}

.InputLogin{
    width: 73%;
    margin-bottom: 15px;
}
.InputLogin2{
    width: 73%;
    margin-bottom: 15px;
    height: 25px;
}

.btn_iniciar_sesion_entrar {
    color: orangered;
    font-weight: bold;
    padding: 4px;
    margin: 12px auto;
    font-size: 1em;
    cursor: pointer;
    width: 50px;
    border-radius: 3px 12px;
}
.paraCentrar {
    display: table-cell;
    height: 100%;
    vertical-align: middle;
}
.efecto2
{
  position: relative;
}
.efecto2:before, .efecto2:after
{
                z-index: -1;
/* Posiciona la sobora por detras del color de la caja*/
                  position: absolute;
                  /* no aplico ningún contenidos HTML */
                  content: "";
                  /* posiciona la sombra con respecto al borde inferior, izquierdo y superior */
                  bottom: 10px;
                  left: 10px;
                  top: 80%;
                  /* configura el ancho */
                  width: 50%;

/* color de fondo */
                  background: transparent;
                  /* definicion de la sombra estandar para box-shadow */
                  -webkit-box-shadow: 0 15px 10px #535353;
                  -moz-box-shadow: 0 15px 10px #535353;
                  box-shadow: 0 15px 10px #535353;
                  /* rotacion de la sombra */
                  -webkit-transform: rotate(-3deg);
                  -moz-transform: rotate(-3deg);
                  -o-transform: rotate(-3deg);
                  -ms-transform: rotate(-3deg);
                  transform: rotate(-3deg);
}

.efecto2:after
{
                  /* rotacion de la sombra */
                  -webkit-transform: rotate(3deg);
                  -moz-transform: rotate(3deg);
                  -o-transform: rotate(3deg);
                  -ms-transform: rotate(3deg);
                  transform: rotate(3deg);
                  /* posiciona la sombra con respecto al borde izquierdo y derecho */
                  right: 10px;
                  left: auto;
}