Why does svg behave like this?

Question

HTML

Guys hello everyone. Help me to understand. Do you have an svg sprite? here is his code

<?xml version="1.0" encoding="utf-8"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><symbol viewBox="0 0 34 32" id="cart" xmlns="http://www.w3.org/2000/svg"><title>cart</title><path d="M3.951 12.55c.055.018.109 0 .164-.018.055-.036.091-.073.091-.127h.018l.473-1.711.055-.237h22.813a.206.206 0 0 0 .146-.055.232.232 0 0 0 .073-.164c0-.055-.036-.109-.073-.146s-.091-.055-.146-.055H4.879l.109-.401 1.839-6.627v-.018l.018-.018c.146-.364.346-.583.564-.71.237-.146.492-.182.783-.182h1.056a.206.206 0 0 0 .146-.055c.036-.036.055-.091.055-.164a.206.206 0 0 0-.055-.146.208.208 0 0 0-.146-.055H8.192c-.273 0-.619.018-.929.182s-.601.455-.838.983v.018l-.018.018-2.604 9.413c-.018.055-.018.127.018.164.018.055.073.091.127.109zm8.43-9.413h9.431c.346 0 .655-.146.892-.382a1.25 1.25 0 0 0 .364-.892c0-.346-.146-.655-.364-.892a1.318 1.318 0 0 0-.892-.364h-9.431c-.346 0-.655.146-.892.364a1.318 1.318 0 0 0-.364.892c0 .364.146.674.364.892.237.237.546.382.892.382zm0-2.094h9.431c.218 0 .437.091.583.237a.842.842 0 0 1 .237.583.886.886 0 0 1-.237.601.842.842 0 0 1-.583.237h-9.431a.843.843 0 0 1-.583-.237c-.146-.164-.255-.364-.255-.601a.842.842 0 0 1 .838-.82zm-6.719 17.57c0 .073.036.127.073.164s.091.055.146.055h2.822l.018.291.255 3.132.036.346H6.39c-.073 0-.127.018-.164.055a.208.208 0 0 0-.055.146c0 .073.018.127.055.164.036.036.091.055.164.055h2.658l.018.291.255 3.132.036.346H6.936c-.073 0-.127.018-.164.055a.208.208 0 0 0-.055.146c0 .073.018.127.055.164.036.036.091.055.164.055h2.458l.018.291.146 1.602c0 .073.018.109.055.146s.091.055.146.055h.018c.073 0 .127-.036.146-.073.036-.036.055-.091.055-.164l-.127-1.511-.018-.346h4.424v1.875a.23.23 0 0 0 .073.164c.036.036.091.055.146.055s.109-.018.164-.055c.036-.036.055-.091.055-.164V27.21h4.807v1.875c0 .073.018.127.055.164.036.036.091.055.164.055a.206.206 0 0 0 .146-.055c.036-.036.055-.091.055-.164V27.21h4.442l-.018.346-.127 1.511c-.018.073 0 .127.036.164s.091.073.146.073h.018c.073 0 .109-.018.146-.055.055-.036.073-.073.073-.146l.146-1.602.018-.291h2.476c.073 0 .127-.018.164-.055s.055-.091.055-.164c0-.055-.018-.109-.055-.146s-.091-.055-.164-.055h-2.44l.018-.346.273-3.132.018-.291h2.658a.206.206 0 0 0 .146-.055c.055-.036.073-.091.073-.164a.166.166 0 0 0-.073-.146.208.208 0 0 0-.146-.055h-2.622l.036-.346.255-3.132.018-.291h2.877c.073 0 .127-.018.164-.055s.055-.091.055-.164c0-.055-.018-.109-.055-.146s-.091-.055-.164-.055h-2.84l.036-.346.127-1.529c0-.055-.018-.109-.055-.146s-.091-.073-.146-.073c-.055-.018-.127 0-.164.036s-.073.091-.073.146l-.127 1.62-.036.291H19.92v-1.893c0-.055-.018-.109-.055-.146s-.091-.055-.146-.055c-.073 0-.127.018-.164.055s-.055.091-.055.146v1.893h-4.807v-1.893a.206.206 0 0 0-.055-.146h-.018c-.036-.036-.091-.055-.146-.055s-.109.018-.146.055c-.036.036-.073.091-.073.146v1.893H9.084l-.018-.291-.127-1.62a.359.359 0 0 0-.073-.146c-.055-.036-.109-.055-.164-.036-.055 0-.109.036-.146.073s-.055.091-.055.146l.127 1.529.036.346H5.878c-.055 0-.109.018-.146.055s-.073.091-.073.146zm14.566.218h4.843l-.036.346-.255 3.132-.036.291h-4.825v-3.769h.309zm0 4.188h4.479l-.018.346-.273 3.132-.018.291h-4.479v-3.769h.309zm-5.226-4.188h4.497V22.6h-4.807v-3.769h.309zm0 4.188h4.497v3.769h-4.807v-3.769h.309zm-1.056 3.769H9.795l-.036-.291-.255-3.132-.036-.346h4.788v3.769h-.309zm.31-7.647V22.6H9.449l-.036-.291-.255-3.132-.036-.346h5.134v.309zm18.025-9.104h-2.513l-.073-.237-1.912-6.937-.018-.018v-.018c-.237-.528-.528-.819-.837-.983-.328-.164-.655-.182-.929-.182h-1.056a.206.206 0 0 0-.146.055c-.036.036-.073.091-.073.146a.23.23 0 0 0 .073.164.208.208 0 0 0 .146.055h1.056c.291 0 .546.036.783.182.218.127.419.346.564.71l.018.018v.018l2.604 9.395c.018.036.055.073.091.109.018.018.073.036.127.036h.054c.055-.018.109-.055.127-.109.036-.036.036-.109.018-.164l-.401-1.42-.109-.401h2.185v1.875c0 .073.018.127.055.164.036.036.091.055.164.055a.206.206 0 0 0 .146-.055.232.232 0 0 0 .073-.164v-2.094c0-.055-.036-.109-.073-.146a.208.208 0 0 0-.146-.055zm-1.056 4.188H2.131v-3.769h.601a.206.206 0 0 0 .146-.055c.055-.036.073-.091.073-.164a.166.166 0 0 0-.073-.146.208.208 0 0 0-.146-.055h-.819c-.055 0-.109.018-.146.055s-.073.091-.073.146v4.188a.23.23 0 0 0 .073.164.208.208 0 0 0 .146.055h29.076l-.055.364-2.021 14.056v.018c0 .528-.2 1.001-.546 1.329a1.856 1.856 0 0 1-1.329.564H7.156a1.825 1.825 0 0 1-1.329-.564 1.825 1.825 0 0 1-.564-1.329v-.018L3.497 16.501c0-.055-.036-.109-.073-.146-.055-.036-.109-.055-.164-.036-.055 0-.109.036-.146.073-.036.055-.055.109-.036.164v.036l1.766 12.49v.036c0 .637.273 1.202.692 1.62.419.401.983.655 1.62.655h19.882c.637 0 1.202-.255 1.62-.655.419-.419.692-.983.692-1.62v-.036l2.094-14.62v-.091c-.018-.018-.036-.055-.055-.073-.018-.036-.036-.055-.073-.055-.018-.018-.055-.018-.091-.018z"/></symbol></svg>

despite the fact that the viewbox is 32 by 34,
if I don't set the width to auto, then it stretches to 300px,
why say not to 500
parents with a size of 300 no, go beyond the "a" tag