css矩形样式，两边圆形

废话不多说，代码如下，直接拷贝即可使用：

index.vue文件

<template>
	<view class="wrap">
		<view class="tabs">
			<view class="tab active">
				<view class="name">标签</view>
			</view>
		</view>
		<view class="content-wrap">
			<image mode="aspectFill" src="../../static/password.png"></image>
		</view>
	</view>
</template>
<script>
	export default {
		data() {
			return {};
		},
		methods: {}
	};
</script>

<style lang="scss">
	.wrap {
		background-color: #aaaa7f;
		width: 300px;
		margin: 0 auto;
		padding: 10px;
		box-sizing: border-box;
	}

	.tabs {
		display: flex;
		width: 100%;
		overflow: hidden;
		border-radius: 8px 8px 0 0;
		background-color: #fff;

		.box {
			width: 200px;
			height: 50px;
		}
	}

	.tab {
		width: 100px;
		height: 50px;
		margin: 0 auto;
		cursor: pointer;
		position: relative;
		text-align: center;
		line-height: 50px;
		transform: rotate(180deg);

		.name {
			transform: rotate(-180deg);
		}
	}

	.tab.active {
		color: #fff;
		font-size: 18px;
		letter-spacing: 2px;
		font-weight: bold;
		background-color: #ff55ff;
	}

	.tab.active:before {
		content: '';
		position: absolute;
		top: 0;
		left: -50px;
		height: 100%;
		width: 50px;
		z-index: 2;
		background-color: #ff55ff;
		clip-path: path('M 50,0 C 25,0 25,50 0,50 L 50,50 Z');
	}

	.tab.active:after {
		content: '';
		position: absolute;
		top: 0;
		right: -50px;
		height: 100%;
		width: 50px;
		z-index: 2;
		background-color: #ff55ff;
		box-sizing: border-box;
		clip-path: path('M 0,0 C 25,0 25,50 50,50 L 0, 50 Z');
	}

	.content-wrap {
		display: flex;
		justify-content: center;
		align-items: center;
		height: 200px;
		background-color: #fff;
		border-radius: 0 0 8px 8px;
		
		image{
			width: 100px;
			height: 100px;
		}
	}
</style>

素材如下

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