.selectivo {
    position: relative;
    display: inline-block;
    background: white;
}

.selectivo__label,
.selectivo__option {
    display: block;
    width: 100%;
    padding: 1em;
    padding-right: 2.5em;
    border: 0;
    background: transparent;

    color: inherit;
    white-space: nowrap;

    cursor: pointer;
    outline: none;
}

.selectivo__label:focus,
.selectivo__option:focus {
    outline: 1px dotted gray;
}

.selectivo__label::-moz-focus-inner,
.selectivo__option::-moz-focus-inner {
    border: 0;
}

.selectivo__label,
.selectivo__dropdown {
    border: 1px solid #E3E3E3;
}

.selectivo__dropdown {
    display: none;
    max-height: 300px;
    overflow: hidden;
    position: absolute;
    z-index: 1;
    background: white;
}

.selectivo--open .selectivo__dropdown {
    display: block;
}