html - 修复字体响应

Question

当您将鼠标悬停在图片上时，您会看到它将被文本 block 替换。

当你缩小浏览器时，你会看到字体大小保持不变，尽管我在 EMs 中指定了它应该使字体响应。

我需要悬停元素的布局在移动 View 中保持不变，即我需要避免在缩小浏览器尺寸时出现的滚动条。有什么想法可以实现吗？

/*Programs*/

ul.img-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
}

ul.img-list li {
  display: inline-block;
  width: 100%;
  height: 100%;
  margin: 0;
  position: relative;
}

div.text-content {
  background: rgba(26,33,43,0.9);
  color: white;
  cursor: pointer;
  left: 0;
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  font-size: 1.250em;
  font-family: Roboto;
  line-height: 1em;
  font-weight: 300;
  text-align: center;
  overflow-y: auto;
  box-sizing: border-box;
  padding-right: 25px;
  padding-left: 25px;
  padding-top: 25px;
  padding-bottom: 25px;
 -webkit-transition: opacity 500ms;
  -moz-transition: opacity 500ms;
  -o-transition: opacity 500ms;
  transition: opacity 500ms;
  text-align: center;
  vertical-align: middle;
}

ul.img-list li:hover div.text-content {
  opacity: 1;
}

/* Events page */

/*Event link button*/

.btn {
background-color: transparent;
border-radius: 42px;
border: 2px solid #ffffff;
display: inline-block;
cursor: pointer;
font-family: Roboto;
line-height: 1.750em;
font-size: 1.500em;
padding: 5px 15px 5px 15px;
margin-right: 45px;
margin-left: 45px;
}

.btn:link {
    color: #ffffff;
    text-decoration: none;
}

.btn:visited {
  color: #1b1c16;
  text-decoration: none;
}

.btn:hover {
  background-color: #ffffff;
  color: #1b1c16 !important;
}

.btn:active {
  position: relative;
	top: 1px;
}

/*All events button*/

.evens_btn {
background: ;
}

.events_btn>span{
color: #f9c70f;
font-family: Roboto;
color: #ffffff;
font-size: 1.5em !important;
background: ;
text-decoration: none !important;
padding: 10px 0px 10px 0px;
}

.events_btn>i{
color: #ffffff; 
margin-right: 15px; 
font-size: 3.125em;
}

.events_btn:link>i {
    color: #f9c70f;
}

.events_btn:visited>i {
  color: #ffffff;
  text-decoration: none;
}

.events_btn:hover>i {
 color: #f9c70f;
}

.events_btn:active>i {
  color: #f9c70f;
}

.events_btn:link>span {
    color: #f9c70f;
}

.events_btn:visited>span {
  color: #ffffff;
  text-decoration: none;
}

.events_btn:hover>span {
 color: #f9c70f ;
}

.events_btn:active>span {
  color: #f9c70f;
}

<ul class="img-list">
  <li><img style="width: 100%; height: 100%;" src="http://www.sflsupport.org/wp-content/uploads/2016/06/Programs-11.jpg" />                              
    <div class="text-content">
      <div>
       <h5 style="color: white; font-size: 2.375em; font-family: Montserrat; font-weight: 600; line-height: 1em; letter-spacing: 0.125em;">WEBINAR<br/>ARCHIVE</h5>
       <hr style="border-top: 0.125em solid #ffffff; width: auto; margin: 0.625em 1.875em;"/>Throughout the years SFL has ammased the library of recorded webinars from some of the leading libertarian voices about numerous topics in philosophy, politics, and economics. How can the government fix the higher education bubble? What is Ayn Rand's theory of natural rights? Tune in to our videos for answers to these questions and many more.
      <br>
      <a class="btn" style="color: white; text-align: center; margin-top: 0.625em; padding-top: 0.313em; padding-bottom: 0.313em; padding-left: 1.875em; padding-right: 1.875em; text-decoration: none; font-size: 1.500em; font-weight: 600; border: 3px solid white; letter-spacing: 0.125em;" href="http://www.google.com/" target="_blank">READ MORE</a>
      </div>
    </div>
  </li>
</ul>

Answer 1

您可以简单地在 vw 而不是 em

中设置字体大小

/*Programs*/

ul.img-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: center;
}

ul.img-list li {
  display: inline-block;
  width: 100%;
  height: 100%;
  margin: 0;
  position: relative;
}

div.text-content {
  background: rgba(26,33,43,0.9);
  color: white;
  cursor: pointer;
  left: 0;
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  font-size: 3vw;
  font-family: Roboto;
  line-height: 1em;
  font-weight: 300;
  text-align: center;
  overflow-y: auto;
  box-sizing: border-box;
  padding-right: 25px;
  padding-left: 25px;
  padding-top: 25px;
  padding-bottom: 25px;
 -webkit-transition: opacity 500ms;
  -moz-transition: opacity 500ms;
  -o-transition: opacity 500ms;
  transition: opacity 500ms;
  text-align: center;
  vertical-align: middle;
}

ul.img-list li:hover div.text-content {
  opacity: 1;
}

/* Events page */

/*Event link button*/

.btn {
background-color: transparent;
border-radius: 42px;
border: 2px solid #ffffff;
display: inline-block;
cursor: pointer;
font-family: Roboto;
line-height: 1.750em;
font-size: 1.500em;
padding: 5px 15px 5px 15px;
margin-right: 45px;
margin-left: 45px;
}

.btn:link {
    color: #ffffff;
    text-decoration: none;
}

.btn:visited {
  color: #1b1c16;
  text-decoration: none;
}

.btn:hover {
  background-color: #ffffff;
  color: #1b1c16 !important;
}

.btn:active {
  position: relative;
	top: 1px;
}

/*All events button*/

.evens_btn {
background: ;
}

.events_btn>span{
color: #f9c70f;
font-family: Roboto;
color: #ffffff;
font-size: 1.5em !important;
background: ;
text-decoration: none !important;
padding: 10px 0px 10px 0px;
}

.events_btn>i{
color: #ffffff; 
margin-right: 15px; 
font-size: 3.125em;
}

.events_btn:link>i {
    color: #f9c70f;
}

.events_btn:visited>i {
  color: #ffffff;
  text-decoration: none;
}

.events_btn:hover>i {
 color: #f9c70f;
}

.events_btn:active>i {
  color: #f9c70f;
}

.events_btn:link>span {
    color: #f9c70f;
}

.events_btn:visited>span {
  color: #ffffff;
  text-decoration: none;
}

.events_btn:hover>span {
 color: #f9c70f ;
}

.events_btn:active>span {
  color: #f9c70f;
}

<ul class="img-list">
  <li><img style="width: 100%; height: 100%;" src="http://www.sflsupport.org/wp-content/uploads/2016/06/Programs-11.jpg" />                              
    <div class="text-content">
      <div>
       <h5 style="color: white; font-size: 2.375em; font-family: Montserrat; font-weight: 600; line-height: 1em; letter-spacing: 0.125em;">WEBINAR<br/>ARCHIVE</h5>
       <hr style="border-top: 0.125em solid #ffffff; width: auto; margin: 0.625em 1.875em;"/>Throughout the years SFL has ammased the library of recorded webinars from some of the leading libertarian voices about numerous topics in philosophy, politics, and economics. How can the government fix the higher education bubble? What is Ayn Rand's theory of natural rights? Tune in to our videos for answers to these questions and many more.
      <br>
      <a class="btn" style="color: white; text-align: center; margin-top: 0.625em; padding-top: 0.313em; padding-bottom: 0.313em; padding-left: 1.875em; padding-right: 1.875em; text-decoration: none; font-size: 1.500em; font-weight: 600; border: 3px solid white; letter-spacing: 0.125em;" href="http://www.google.com/" target="_blank">READ MORE</a>
      </div>
    </div>
  </li>
</ul>