【コピペで完成】HTML・CSSでつくるおしゃれなセレクトボックス(プルダウン)のデザイン6選

カラフルなセレクトボックス

フラット

矢印の背景色：#2589d0
背景色：#e6edf3
セレクトボックスの形状四角角丸

<label class="selectbox-001">
    <select>
        <option>optionの例1</option>
        <option>optionの例2</option>
        <option>optionの例3</option>
    </select>
</label>

.selectbox-001 {
    position: relative;
}

.selectbox-001::before,
.selectbox-001::after {
    position: absolute;
    content: '';
    pointer-events: none;
}

.selectbox-001::before {
    display: inline-block;
    right: 0;
    width: 2.8em;
    height: 2.8em;
    border-radius: 0 3px 3px 0;
    background-color: #2589d0;
}

.selectbox-001::after {
    position: absolute;
    top: 50%;
    right: 1.4em;
    transform: translate(50%, -50%) rotate(45deg);
    width: 6px;
    height: 6px;
    border-bottom: 3px solid #fff;
    border-right: 3px solid #fff;
}

.selectbox-001 select {
    appearance: none;
    min-width: 230px;
    height: 2.8em;
    padding: .4em 3.6em .4em .8em;
    border: none;
    border-radius: 3px;
    background-color: #e6edf3;
    color: #333;
    font-size: 1em;
    cursor: pointer;
}

.selectbox-001 select:focus {
    outline: 2px solid #2589d0;
}

枠線あり

基調色：#2589d0
文字色：#333333
セレクトボックスの形状四角角丸

<label class="selectbox-002">
    <select>
        <option>optionの例1</option>
        <option>optionの例2</option>
        <option>optionの例3</option>
    </select>
</label>

.selectbox-002 {
    position: relative;
}

.selectbox-002::before,
.selectbox-002::after {
    position: absolute;
    content: '';
    pointer-events: none;
}

.selectbox-002::before {
    right: 0;
    display: inline-block;
    width: 2.8em;
    height: 2.8em;
    border-radius: 0 3px 3px 0;
    background-color: #2589d0;
    content: '';
}

.selectbox-002::after {
    position: absolute;
    top: 50%;
    right: 1.4em;
    transform: translate(50%, -50%) rotate(45deg);
    width: 6px;
    height: 6px;
    border-bottom: 3px solid #fff;
    border-right: 3px solid #fff;
    content: '';
}

.selectbox-002 select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    min-width: 230px;
    height: 2.8em;
    padding: .4em 3.6em .4em .8em;
    border: 2px solid #2589d0;
    border-radius: 3px;
    color: #333333;
    font-size: 1em;
    cursor: pointer;
}

.selectbox-002 select:focus {
    outline: 1px solid #2589d0;
}

シンプルなセレクトボックス

スタンダード

枠線の色：#cccccc
文字色：#333333
セレクトボックスの形状四角角丸

<label class="selectbox-003">
    <select>
        <option>optionの例1</option>
        <option>optionの例2</option>
        <option>optionの例3</option>
    </select>
</label>

.selectbox-003 {
    display: inline-flex;
    align-items: center;
    position: relative;
}

.selectbox-003::after {
    position: absolute;
    right: 15px;
    width: 10px;
    height: 7px;
    background-color: #535353;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    content: '';
    pointer-events: none;
}

.selectbox-003 select {
    appearance: none;
    min-width: 230px;
    height: 2.8em;
    padding: .4em calc(.8em + 30px) .4em .8em;
    border: 1px solid #cccccc;
    border-radius: 3px;
    background-color: #fff;
    color: #333333;
    font-size: 1em;
    cursor: pointer;
}

スタンダード×矢印2つ

枠線の色：#cccccc
文字色：#333333
セレクトボックスの形状四角角丸

<label class="selectbox-006">
    <select>
        <option>optionの例1</option>
        <option>optionの例2</option>
        <option>optionの例3</option>
    </select>
</label>

.selectbox-006 {
    position: relative;
}

.selectbox-006::before,
.selectbox-006::after {
    position: absolute;
    right: 15px;
    width: 9px;
    height: 6px;
    background-color: #535353;
    content: '';
    pointer-events: none;
}

.selectbox-006::before {
    top: calc(50% - 9px);
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.selectbox-006::after {
    bottom: calc(50% - 9px);
    clip-path: polygon(0 0, 50% 100%, 100% 0);
}

.selectbox-006 select {
    appearance: none;
    min-width: 230px;
    height: 2.8em;
    padding: .4em calc(.8em + 30px) .4em .8em;
    border: 1px solid #cccccc;
    border-radius: 3px;
    background-color: #fff;
    color: #333333;
    font-size: 1em;
    cursor: pointer;
}

下線のみ

下線の色：#cccccc
文字色：#333333

<label class="selectbox-005">
    <select>
        <option>optionの例1</option>
        <option>optionの例2</option>
        <option>optionの例3</option>
    </select>
</label>

.selectbox-005 {
    display: inline-flex;
    align-items: center;
    position: relative;
}

.selectbox-005::after {
    position: absolute;
    right: 15px;
    width: 10px;
    height: 7px;
    background-color: #535353;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    content: '';
    pointer-events: none;
}

.selectbox-005 select {
    appearance: none;
    min-width: 230px;
    height: 2.8em;
    padding: .4em calc(.8em + 30px) .4em .8em;
    border: none;
    border-bottom: 2px solid #cccccc;
    background-color: #fff;
    color: #333333;
    font-size: 1em;
    cursor: pointer;
}

.selectbox-005 select:focus {
    outline: none;
}

白背景×シャドウ

文字色：#333333
セレクトボックスの形状四角角丸

<label class="selectbox-004">
    <select>
        <option>optionの例1</option>
        <option>optionの例2</option>
        <option>optionの例3</option>
    </select>
</label>

.selectbox-004 {
    display: inline-flex;
    align-items: center;
    position: relative;
}

.selectbox-004::after {
    position: absolute;
    right: 15px;
    width: 10px;
    height: 7px;
    background-color: #535353;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    content: '';
    pointer-events: none;
}

.selectbox-004 select {
    appearance: none;
    min-width: 230px;
    height: 2.8em;
    padding: .4em calc(.8em + 30px) .4em .8em;
    border: none;
    border-radius: 3px;
    box-shadow: 0 4px 4px rgb(0 0 0 / 2%), 0 2px 3px -2px rgba(0 0 0 / 5%);
    background-color: #fff;
    color: #333333;
    font-size: 1em;
    cursor: pointer;
}