$d: 2em; // diameter of central round button
$r: 16em; // radius of menu
$n: 3; // must match number of list items in DOM
$exp: 3em; // menu item height
$tip: .75em; // dimension of tip on middle menu item
$w: .5em; // width of ends
$cover-dim: 2*($r - $exp); // dimension of the link cover
$angle: 15deg; // angle for a menu item
$skew-angle: 90deg - $angle; // how much to skew a menu item to $angle
$scale-factor: cos($skew-angle); // correction factor - see vimeo.com/98137613 from min 15
$off-angle: .125deg; // offset angle so we have a little space between menu items
// don't show the actual checkbox
input {
transform: translate(-100vw); // move offscreen
visibility: hidden; // avoid paint
}
// change state of menu to revealed on checking the checkbox
input:checked ~ ul {
transform: scale(1);
opacity: .999;
// ease out back from easings.net/#easeOutBack
transition: .5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
// position everything absolutely such that their left bottom corner
// is in the middle of the screen
label, ul, li {
position: absolute;
left: 50%; bottom: 50%;
}
// visual candy styles
label, a {
color: #858596;
font: 700 1em/ #{$d} sans-serif;
text-align: center;
text-shadow: 0 1px 1px #6c6f7e;
cursor: pointer;
}
label {
z-index: 2; // place it above the menu which has z-index: 1
margin: -$d/2; // position correction such that it's right in the middle
width: $d; height: $d;
border-radius: 50%;
box-shadow: 0 0 1px 1px white,
0 .125em .25em #876366,
0 .125em .5em #876366;
background: radial-gradient(#d4c7c5, #e5e1dd);
}
ul {
z-index: 1;
margin: -$r + $exp + 1.5*$d 0; // position correction
padding: 0;
list-style: none;
transform-origin: 50% (-$r + $exp);
transform: scale(.001); // initial state: scaled down to invisible
will-change: transform; // better perf on transitioning transform
opacity: .001; // initial state: transparent
filter: drop-shadow(0 .125em .25em #847c77)
drop-shadow(0 .125em .5em #847c77);
// ease in back, also from easings.net
transition: .5s cubic-bezier(0.6, -0.28, 0.735, 0.045);
// menu ends
&:before, &:after {
position: absolute;
margin: -$exp (-$w/2);
width: $w; height: $exp;
transform-origin: 50% 100%;
background: linear-gradient(#ddd, #c9c4bf);
content: '';
}
&:before {
border-radius: $w 0 0 $w;
transform: rotate(-.5*$n*$angle)
translate(-$w/2, -$r + $exp);
box-shadow: inset 1px 0 1px #eee;
}
&:after {
border-radius: 0 $w $w 0;
transform: rotate(.5*$n*$angle)
translate($w/2, -$r + $exp);
box-shadow: inset -1px 0 1px #eee;
}
}
li {
overflow: hidden;
width: $r; height: $r;
transform-origin: 0 100%;
@for $i from 0 to $n {
&:nth-child(#{$i + 1}) {
$curr-angle: $i*$angle +
($i + .5)*$off-angle -
.5*$n*($angle + $off-angle);
// make each list item a rhombus rotated around its bottom left corner
// see explanation from minute 33:10 youtube.com/watch?v=ehjoh_MmE9A
transform: rotate($curr-angle)
skewY(-$skew-angle)
scaleX($scale-factor);
// add tip for the item n the middle, just a rotated square
@if $i == ($n - 1)/2 {
a:after {
position: absolute;
top: $exp; left: 50%;
margin: -$tip/2;
width: $tip; height: $tip;
transform: rotate(45deg);
box-shadow:
inset -1px -1px 1px #eee;
background: linear-gradient(-45deg,
#bbb, #c9c4bf 50%);
content: '';
}
}
}
}
a, &:before {
margin: 0 (-$r);
width: 2*$r; height: 2*$r;
border-radius: 50%;
}
&:before, &:after {
position: absolute;
border-radius: 50%;
// undo distorting transforms from menu item (parent li)
transform: scaleX(1/$scale-factor)
skewY($skew-angle);
content: '';
}
// actual background of the arched menu items
&:before {
box-shadow:
inset 0 0 1px 1px #fff,
inset 0 0 $exp #ebe7e2,
inset 0 0 1px ($exp - .0625em) #c9c4bf,
inset 0 0 0 $exp #dcdcdc;
}
// cover to prevent click action in between the star and menu items
&:after {
top: 100%; left: 0;
margin: -$cover-dim/2;
width: $cover-dim; height: $cover-dim;
border-radius: 50%;
}
}
a {
display: block;
// undo distorting transforms from menu item and rotate into right position
transform: scaleX(1/$scale-factor)
skewY($skew-angle)
rotate($angle/2);
line-height: $exp;
text-align: center;
text-decoration: none;
}
3 回答
差不多3年后,我终于抽出时间重温这个并发布改进版本 . 您仍然可以在最后查看原始答案以供参考 .
虽然SVG可能是更好的选择,特别是今天,我的目标是保持它只是HTML和CSS,没有JS,没有SVG,没有图像(除了根元素的背景) .
2015演示
截图
Chrome 43:
Firefox 38:
IE 11:
代码
HTML非常简单 . 我正在使用复选框hack来显示/隐藏菜单 .
我正在使用Sass保持这种逻辑,并在需要时更容易更改 . 大力评论 .
原始答案
我试图用纯CSS做一些这样的事情:
演示
(点击星标)
适用于Chrome,Firefox(悬停时有点奇怪的模糊效果),Opera(结尾看起来更小)和Safari(结尾看起来更小) .
安娜的回应是踢屁股!这是一些严肃的CSS-fu .
我的解决方案可能不是你所希望的,但它现在正在罗盘界面上工作,它具有类似弧形按钮的风格 . 我决定使用Raphael和SVG开发它 .
我在Illustrator中创建了一个弧形,为它导出了SVG,从导出的SVG文件中获取了弧的路径定义,并使用Raphael用它构建了我的界面 .
这是一个JSFiddle .
这是JavaScript:
这是相关的CSS:
另一个非常好的方法是使用JavaScript进行定位 .
DEMO + TUTORIAL on making an animated radial menu
这种方法的专家是你可以使用任意数量的元素,它将保持径向定位,而不必更改任何CSS .
有问题的JavaScript是: