意外的边框CSS行为

Question

我有一个带有悬停动画的简单按钮。正如您在代码中看到的，我将边界设置为none。但出乎意料的是，当你点击按钮时，会出现黑色边框。如果单击页面上的任何位置，黑色边框将再次消失。

造成这种情况的原因是什么？如何解决？

.voiceAcceptedClass {
position:absolute;
z-index: 10002;
cursor: pointer;
background: #006aff;
padding: 0.325vw 3.906vw;
color: #fff;
text-decoration: none;
font-size: 1.2vw;
top: 40vw;
width: 30vw;
text-align: center;
border: none;
}
#voiceAccepted{
left: 10.3vw;
top:44vw;
}
.voiceAcceptedClass:hover {
text-shadow: 0 0 0.39vw rgba(255, 255, 255, 1);
-webkit-box-shadow: 0 0.33vw 2.6vw -0.65vw rgba(0,0,0,0.57);
transition: all 0.4s ease 0s;
}
/* Hover state animation applied here */
.voiceAcceptedClass:hover { 
-webkit-animation: hover 1200ms linear 2 alternate;
animation: hover 1200ms linear 2 alternate;
}
/* Active state animation applied here */
.voiceAcceptedClass:active {
-webkit-animation: active 1200ms ease 1 alternate;
animation: active 1200ms ease 1 alternate; 
background: #5F9BE0;
}

/* Hover state animation keyframes below */
@-webkit-keyframes hover { 
0% { -webkit-transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
1.8% { -webkit-transform: matrix3d(1.016, 0, 0, 0, 0, 1.037, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.016, 0, 0, 0, 0, 1.037, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
3.5% { -webkit-transform: matrix3d(1.033, 0, 0, 0, 0, 1.094, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.033, 0, 0, 0, 0, 1.094, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
4.7% { -webkit-transform: matrix3d(1.045, 0, 0, 0, 0, 1.129, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.045, 0, 0, 0, 0, 1.129, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
5.31% { -webkit-transform: matrix3d(1.051, 0, 0, 0, 0, 1.142, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.051, 0, 0, 0, 0, 1.142, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
7.01% { -webkit-transform: matrix3d(1.068, 0, 0, 0, 0, 1.158, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.068, 0, 0, 0, 0, 1.158, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
8.91% { -webkit-transform: matrix3d(1.084, 0, 0, 0, 0, 1.141, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.084, 0, 0, 0, 0, 1.141, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
9.41% { -webkit-transform: matrix3d(1.088, 0, 0, 0, 0, 1.132, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.088, 0, 0, 0, 0, 1.132, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
10.71% { -webkit-transform: matrix3d(1.097, 0, 0, 0, 0, 1.107, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.097, 0, 0, 0, 0, 1.107, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
12.61% { -webkit-transform: matrix3d(1.108, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.108, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
14.11% { -webkit-transform: matrix3d(1.114, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.114, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
14.41% { -webkit-transform: matrix3d(1.115, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.115, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
16.32% { -webkit-transform: matrix3d(1.119, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.119, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
18.12% { -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 1.096, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.121, 0, 0, 0, 0, 1.096, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
18.72% { -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.121, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
20.02% { -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 1.113, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.121, 0, 0, 0, 0, 1.113, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
21.82% { -webkit-transform: matrix3d(1.119, 0, 0, 0, 0, 1.119, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.119, 0, 0, 0, 0, 1.119, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
24.32% { -webkit-transform: matrix3d(1.115, 0, 0, 0, 0, 1.11, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.115, 0, 0, 0, 0, 1.11, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
25.53% { -webkit-transform: matrix3d(1.113, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.113, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
29.23% { -webkit-transform: matrix3d(1.106, 0, 0, 0, 0, 1.089, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.106, 0, 0, 0, 0, 1.089, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
29.93% { -webkit-transform: matrix3d(1.105, 0, 0, 0, 0, 1.09, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.105, 0, 0, 0, 0, 1.09, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
35.54% { -webkit-transform: matrix3d(1.098, 0, 0, 0, 0, 1.105, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.098, 0, 0, 0, 0, 1.105, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
36.64% { -webkit-transform: matrix3d(1.097, 0, 0, 0, 0, 1.106, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.097, 0, 0, 0, 0, 1.106, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
41.04% { -webkit-transform: matrix3d(1.096, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.096, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
44.04% { -webkit-transform: matrix3d(1.096, 0, 0, 0, 0, 1.097, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.096, 0, 0, 0, 0, 1.097, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
51.45% { -webkit-transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
52.15% { -webkit-transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
58.86% { -webkit-transform: matrix3d(1.101, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.101, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
63.26% { -webkit-transform: matrix3d(1.101, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.101, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
66.27% { -webkit-transform: matrix3d(1.101, 0, 0, 0, 0, 1.101, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.101, 0, 0, 0, 0, 1.101, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
73.77% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
81.18% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
85.49% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
88.59% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
96% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
100% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); } 
}
@keyframes hover { 
0% { -webkit-transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
1.8% { -webkit-transform: matrix3d(1.016, 0, 0, 0, 0, 1.037, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.016, 0, 0, 0, 0, 1.037, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
3.5% { -webkit-transform: matrix3d(1.033, 0, 0, 0, 0, 1.094, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.033, 0, 0, 0, 0, 1.094, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
4.7% { -webkit-transform: matrix3d(1.045, 0, 0, 0, 0, 1.129, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.045, 0, 0, 0, 0, 1.129, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
5.31% { -webkit-transform: matrix3d(1.051, 0, 0, 0, 0, 1.142, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.051, 0, 0, 0, 0, 1.142, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
7.01% { -webkit-transform: matrix3d(1.068, 0, 0, 0, 0, 1.158, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.068, 0, 0, 0, 0, 1.158, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
8.91% { -webkit-transform: matrix3d(1.084, 0, 0, 0, 0, 1.141, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.084, 0, 0, 0, 0, 1.141, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
9.41% { -webkit-transform: matrix3d(1.088, 0, 0, 0, 0, 1.132, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.088, 0, 0, 0, 0, 1.132, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
10.71% { -webkit-transform: matrix3d(1.097, 0, 0, 0, 0, 1.107, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.097, 0, 0, 0, 0, 1.107, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
12.61% { -webkit-transform: matrix3d(1.108, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.108, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
14.11% { -webkit-transform: matrix3d(1.114, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.114, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
14.41% { -webkit-transform: matrix3d(1.115, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.115, 0, 0, 0, 0, 1.067, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
16.32% { -webkit-transform: matrix3d(1.119, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.119, 0, 0, 0, 0, 1.077, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
18.12% { -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 1.096, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.121, 0, 0, 0, 0, 1.096, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
18.72% { -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.121, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
20.02% { -webkit-transform: matrix3d(1.121, 0, 0, 0, 0, 1.113, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.121, 0, 0, 0, 0, 1.113, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
21.82% { -webkit-transform: matrix3d(1.119, 0, 0, 0, 0, 1.119, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.119, 0, 0, 0, 0, 1.119, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
24.32% { -webkit-transform: matrix3d(1.115, 0, 0, 0, 0, 1.11, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.115, 0, 0, 0, 0, 1.11, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
25.53% { -webkit-transform: matrix3d(1.113, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.113, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
29.23% { -webkit-transform: matrix3d(1.106, 0, 0, 0, 0, 1.089, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.106, 0, 0, 0, 0, 1.089, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
29.93% { -webkit-transform: matrix3d(1.105, 0, 0, 0, 0, 1.09, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.105, 0, 0, 0, 0, 1.09, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
35.54% { -webkit-transform: matrix3d(1.098, 0, 0, 0, 0, 1.105, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.098, 0, 0, 0, 0, 1.105, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
36.64% { -webkit-transform: matrix3d(1.097, 0, 0, 0, 0, 1.106, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.097, 0, 0, 0, 0, 1.106, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
41.04% { -webkit-transform: matrix3d(1.096, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.096, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
44.04% { -webkit-transform: matrix3d(1.096, 0, 0, 0, 0, 1.097, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.096, 0, 0, 0, 0, 1.097, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
51.45% { -webkit-transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
52.15% { -webkit-transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.099, 0, 0, 0, 0, 1.102, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
58.86% { -webkit-transform: matrix3d(1.101, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.101, 0, 0, 0, 0, 1.099, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
63.26% { -webkit-transform: matrix3d(1.101, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.101, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
66.27% { -webkit-transform: matrix3d(1.101, 0, 0, 0, 0, 1.101, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.101, 0, 0, 0, 0, 1.101, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
73.77% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
81.18% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
85.49% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
88.59% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
96% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
100% { -webkit-transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); transform: matrix3d(1.1, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); } 
}

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8"> 
</head>
<body> 
<button class="voiceAcceptedClass" id="voiceAccepted">Accept Selected Voices & Continue</button>
</body>
</html>

Answer 1

这不是一个边界，而是一个outline，它是一个重要的可访问性功能，可以告诉人们重点放在文档上。

你可以用与边框相同的方式删除它，但可访问性意味着你不应该(至少除非你用其他清晰可见的焦点标记替换它(。