selectbox/autocomplete.css

.input
{
    background: white;
    border: 1px solid #d8d8d8;
    border-radius: 0;
    font-size: 13px;
    line-height: 20px;
    padding: 0;
    height: 33px;
    position: relative;
}

.input.focused
{
    box-shadow: inset 0 0 0 1px #7ab1ff;
}

.input:after
{
    border: 0;
    top: 50%;
    width: 0;
    position: absolute;
    right: 1em;
    text-align: right;
    font-size: 20px;
    margin-top: -10px;
    font-family: FontAwesome;
    content: "\f107";
    color: #c0c0c0;
    height: 0.75em;
    cursor: pointer;
}

.input.disabled
{
    background: #f4f4f4;
}

.input.multiple
{
    display: flex;
    overflow: hidden;
    cursor: text;
    height: auto;
}

.input.readonly, .input.readonly .inputElement
{
    cursor: pointer;
}

.suggestions
{
    outline: none;
    background: white;
    margin-top: 0;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.24);
    overflow-x: hidden;
    overflow-y: auto;
    padding: 0;
    width: 100%;
    max-height: 100%;
}

.suggestion
{
    font-size: 13px;
    padding: 7px;
    user-select: none;
    cursor: pointer;
}

.suggestion.disabled
{
    color: #aaa;
    background: #f4f6f8;
}

.suggestion.active
{
    background: #d6e8f6;
}

.inputElement
{
    background: transparent;
    font-size: inherit;
    font-weight: inherit;
    line-height: 200%;
    border: 0;
    padding: 0 2em 0 .5em;
    box-sizing: border-box;
    margin: 0;
    height: 100%;
    display: block;
    outline: none;
    width: 100%;
}

.inputElement::-ms-clear
{
    display: none;
}

.inputElement[disabled]
{
    background: transparent;
}

.multiple .inputElement
{
    padding: 0;
    display: inline-block;
    height: 29px;
}

.multiple .inputElement.sizer
{
    display: inline-block;
    width: auto;
    position: absolute;
    padding: 0 2px;
    top: -100px;
    white-space: pre;
    visibility: hidden;
}

.multiple .values
{
    overflow: hidden;
    flex: 1;
    margin: 0 2em 0 5px;
    line-height: 10px;
}

.multiple .values .value
{
    cursor: pointer;
    display: inline-block;
    border-radius: 2px;
    background: #e0f0ff;
    border: 1px solid #c0e0ff;
    line-height: 15px;
    padding: 3px;
    margin: 2px 4px 2px 0;
}

.withClear .inputElement
{
    padding-right: 52px;
}

.clear:after
{
    content: "✕";
    cursor: pointer;
    color: #aaa;
    width: 20px;
    height: 20px;
    border-radius: 10px;
    box-sizing: border-box;
    border: 1px solid #aaa;
    display: block;
    position: absolute;
    left: auto;
    top: 5px;
    right: 28px;
    line-height: 19px;
    font-size: 17px;
    text-align: center;
    padding: 0;
}

.clearValue:after
{
    content: "✕";
    color: #444;
    cursor: pointer;
    display: inline-block;
    font-size: 18px;
    vertical-align: middle;
    margin: 0 3px 0 0;
    text-align: center;
    padding: 0;
}