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

    .has-float-label label, .has-float-label > span {
        position: absolute;
        left: 0;
        top: 0;
        cursor: text;
        font-size: 75%;
        opacity: 1;
        -webkit-transition: all .2s;
        transition: all .2s;
        top: -1.2em;
        left: 0.75rem;
        z-index: 3;
        line-height: 1;
        padding: 0 1px;
    }

        .has-float-label label::after, .has-float-label > span::after {
            content: " ";
            display: block;
            position: absolute;
            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::-moz-placeholder {
        opacity: 1;
        transition: all .2s;
    }

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

    .has-float-label .form-control::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)::-moz-placeholder {
        opacity: 0;
    }

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

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

    .has-float-label .form-control.required-field:placeholder-shown:not(:focus) + * {
        font-size: 100%;
        font-weight: 400;
        opacity: .5;
        top: .65em;
        color: #DC3545;
    }

    .has-float-label .form-control:not(.required-field):placeholder-shown:not(:focus) + * {
        font-size: 100%;
        font-weight: 400;
        opacity: .5;
        top: .65em;
        color: #000000;
    }

    .has-float-label .form-control.form-control-sm.required-field:placeholder-shown:not(:focus) + * {
        font-size: 0.875rem;
        font-weight: 400;
        opacity: .5;
        top: .65em;
        color: #DC3545;
    }

    .has-float-label .form-control:not(.required-field).form-control-sm:placeholder-shown:not(:focus) + * {
        font-size: 0.875rem;
        font-weight: 400;
        opacity: .5;
        top: .65em;
        color: #000;
    }

.input-group .has-float-label {
    -webkit-box-flex: 1;
    -webkit-flex-grow: 1;
    -ms-flex-positive: 1;
    flex-grow: 1;
    margin-bottom: 0;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
}

    .input-group .has-float-label .form-control {
        width: 100%;
        /*border-radius: 0.25rem;*/
    }

    .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;*/
    }

    .form-control.required-field::placeholder{
        color: #DC3545;
        opacity: 0.5;
    }