html - CSS 边框混合/透明度

Question

所以我试图让这个边框的顶部和左侧融入背景，也就是说，沿着边缘没有可见的线。我在 border-shadow 上使用 inset 值来显示这些边缘融合在一起，尽管在边框所在的位置似乎有一个可见的边缘。

请看片段:

HTML:

<article class="para">
    <h2> X-cessive Overview </h2> 
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam pretium lectus eget risus tempor eleifend. Nulla facilisi. Mauris non ultrices mi, in tristique enim. Nulla facilisi. Nullam dapibus consectetur eros, sed eleifend ligula tincidunt id. Curabitur non velit non elit volutpat accumsan iaculis id elit. Nullam quis tortor maximus, laoreet sapien id, gravida nibh. Nunc tempor justo gravida magna sodales euismod. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Morbi et diam suscipit, varius ante sagittis, bibendum dolor. Nunc pellentesque molestie.
</article>

CSS:

.main {
	background-image: url(../images/backgrounds/exile-main1.png);
	background-size: cover;
	background-repeat: no-repeat;
	width: 100%;
	height: 400px;
	color: #000;
	border-bottom: 2px solid #939799;
}
.main h1 {
	position: relative;
	top: 40px;
	left: 30px;
	color: #424040;
	font-size: 2em;
}
.para {
	width: 33%;
	border-right: 2px solid rgb(237,36,62);
	border-bottom: 2px solid rgb(237,36,62);
	border-top: 10px transparent;
	border-left: 10px transparent;
	padding: 15px;
	position: relative;
	left: 140px;
	top: 110px;
	font-size: 1em;
	border-radius: 20px 20px 20px 20px;
	box-shadow: 20px 20px 60px #fff inset;
	background-color: #939799;	
}
.para h2 {
	font-size: 1.2em;
	text-decoration: underline;
}

<article class="para">
    <h2> X-cessive Overview </h2> 
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam pretium lectus eget risus tempor eleifend. Nulla facilisi. Mauris non ultrices mi, in tristique enim. Nulla facilisi. Nullam dapibus consectetur eros, sed eleifend ligula tincidunt id. Curabitur non velit non elit volutpat accumsan iaculis id elit. Nullam quis tortor maximus, laoreet sapien id, gravida nibh. Nunc tempor justo gravida magna sodales euismod. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Morbi et diam suscipit, varius ante sagittis, bibendum dolor. Nunc pellentesque molestie.
</article>

这是一个Screenshot这样您就可以更好地看到问题。

Answer 1

您可以将 .para 上的 box-shadow 调整为:box-shadow: 45px 15px 70px #fff inset

如果文本需要在灰色之上，请向 .para 添加更多的左填充，例如:padding: 15px 15px 15px 40px;

.main {
	background-image: url(../images/backgrounds/exile-main1.png);
	background-size: cover;
	background-repeat: no-repeat;
	width: 100%;
	height: 400px;
	color: #000;
	border-bottom: 2px solid #939799;
}
.main h1 {
	position: relative;
	top: 40px;
	left: 30px;
	color: #424040;
	font-size: 2em;
}
.para {
        width: 33%;
        border-right: 2px solid rgb(237,36,62);
        border-bottom: 2px solid rgb(237,36,62);
        border-top: 10px transparent;
        border-left: 10px transparent;
        padding: 15px 15px 15px 46px; /* Adjust this */
        position: relative;
        left: 140px;
        top: 110px;
        font-size: 1em;
        border-radius: 0 20px 20px 20px; /* Adjust this */
        box-shadow: 45px 15px 70px #fff inset; /* Adjust this*/
        background-color: #939799;
}
.para h2 {
	font-size: 1.2em;
	text-decoration: underline;
}

<article class="para">
					<h2> X-cessive Overview </h2> 
				Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam pretium lectus eget risus tempor eleifend. Nulla facilisi. Mauris non ultrices mi, in tristique enim. Nulla facilisi. Nullam dapibus consectetur eros, sed eleifend ligula tincidunt id. Curabitur non velit non elit volutpat accumsan iaculis id elit. Nullam quis tortor maximus, laoreet sapien id, gravida nibh. Nunc tempor justo gravida magna sodales euismod. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Morbi et diam suscipit, varius ante sagittis, bibendum dolor. Nunc pellentesque molestie.

				</article>