.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: 85%;
        opacity: 1;
        -webkit-transition: all .2s;
        transition: all .2s;    
        top: -.6em;
        left: 0.75rem;
        z-index: 3;
        line-height: 1;
        padding: 0 1px;
        color: #91908E;
        background-color:transparent;
    }

        .has-float-label label::after, .has-float-label > span::after {
   
   
            display: block;
            position: absolute;
            background: white;
            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) + * {
        font-size: 100%;
        opacity: .5;
        top: .7em;
    }

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

    .input-group .has-float-label .form-control {
        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;
    }