.has-float-label {
    display: block;
    position: relative
}

    .has-float-label label,
    .has-float-label > span {
        position: absolute;
        cursor: text;
        font-size: 75%;
        opacity: 1;
        -webkit-transition: all .2s;
        transition: all .2s;
        top: -.5em;
        left: .75rem;
        z-index: 3;
        line-height: 1;
        padding: 0 1px
    }

        .has-float-label label::after,
        .has-float-label > span::after {
            content: " ";
            display: block;
            position: absolute;
            background: #fff;
            height: 2px;
            top: 50%;
            left: -.2em;
            right: -.2em;
            z-index: -1
        }

    .has-float-label .form-control::-webkit-input-placeholder {
        opacity: 1;
        -webkit-transition: all .2s;
        transition: all .2s
    }

    .has-float-label .form-control:placeholder-shown:not(:focus)::-webkit-input-placeholder {
        opacity: 0
    }

    /*.has-float-label .form-control:placeholder-shown:not(:focus) + * {*/
    .has-float-label .form-control:placeholder-shown:not(:focus) + label {/*Que sólo se aplicado a los label*/
        font-size: 100%; /*Tamaño de letra de la etiqueta (label)*/
        opacity: .5;
        top: .7em; /*Bajar el ocntrol label*/
    }

.input-group .has-float-label {
    display: table-cell
}

    .input-group .has-float-label .form-control {
        border-radius: .25rem
    }

    .input-group .has-float-label:not(:last-child),
    .input-group .has-float-label:not(:last-child) .form-control {
        border-bottom-right-radius: 0;
        border-top-right-radius: 0;
        border-right: 0
    }

    .input-group .has-float-label:not(:first-child),
    .input-group .has-float-label:not(:first-child) .form-control {
        border-bottom-left-radius: 0;
        border-top-left-radius: 0
    }