我希望能够将网页上的字体从默认的CSS样式“Amatic SC”更改为Times New Roman,以便于阅读。我有一个按钮,它成功地将其更改为Times New Roman,但无法将其更改回来。我的javascript如下
function changeFont(){
var fon = document.getElementById("posts");
if (fon.style.fontFamily == "Amatic SC") {
fon.style.font = "150% Times New Roman";
}
else {
fon.style.font = "200% Amatic SC";
}
}
HTML看起来像这样:
<div id="posts">Content</div>
<button type="button" onclick="changeFont()">Change the font!</button>
CSS:
#posts {
background-color: #F0F0F1;
margin: 64px 64px 64px 64px;
padding: 10px;
font-family: 'Amatic SC', cursive;
font-size: 200%;
border: 5px solid red;
overflow: auto;
box-shadow: 0 0 10px #777777;
}
答案 0 :(得分:0)
也许你实际上没有那种字体。尝试切换到'Arial'或'Helvetica'或'草书'。
答案 1 :(得分:0)
让你快速小提琴:http://jsfiddle.net/mikepmtl/hbL4L4py/
function changeFont(){
var post = document.getElementById("posts");
if (post.className == "post_normal") {
post.className = "post_big";
} else {
post.className = "post_normal";
}
}
.post_normal{
font-size: 100%;
}
.post_big {
font-size: 200%;
}
<div id="posts" class="post_normal">
This is my posts
</div>
<button id="my_button" onclick="changeFont();">Press Me</button>
当然,您可以将Font-family和其他任何内容添加到css类中。
答案 2 :(得分:0)
使用类比使用font-family更好:
function changeFont() {
var fon = document.getElementById("posts");
if (fon.className == "amatic") {
fon.className = 'roman';
} else {
fon.className = 'amatic';
}
}
#posts {
background-color: #F0F0F1;
margin: 64px 64px 64px 64px;
padding: 10px;
border: 5px solid red;
overflow: auto;
box-shadow: 0 0 10px #777777;
}
.amatic {
font-family: 'Amatic SC', cursive;
font-size: 200%;
}
.roman {
font-family: 'Times New Roman', cursive;
font-size: 200%;
}
<div id="posts" class="amatic">Content</div>
<button type="button" onclick="changeFont()">Change the font!</button>